Taboo- prohibition, proscription, veto, interdiction
Opp: acceptable
Taciturn- untalkative, uncommunicative, inarticulate, reserved
Opp: talkative
Tamper- fiddle, fool around, play around, interfere
Tangible- touchable, palpable, corporeal, discernible
Opp: abstract
Tantalize- torment, torture, beguile, excite, intrigue
Tantamount- equivalent to, as good as
Taper- decline, wane, ebb, slacken
Opp: thicken, increase
Taunt- jeer, insult, barb, catcall
Taut- crisp, sharp, pithy, succinct
Opp: slack, relaxed
Tawdry- vulgar, trashy, junky, cheap
Temperance- abstinence, prohibition, sobriety
Opp: alcoholism
Tenuous- weak, doubtful, insubstantial, slight
Opp: convincing, strong
Tenterhooks- anxious, worried, nervous, nervy
Tepid- lukewarm warmish, unenthused
Threnody- lament, dirge, elegy, monody
Thwart- frustrate, baulk, prevent, defeat, impede
Opp: facilitate
Titular- name only, ceremonial, puppet
Toady- flatterer, creep, crawler
Tractable- manageable, amenable, obedient, meek
Opp: recalcitrant
Traction-purchase, friction, adhesion, grip
Traduce- slander, denigrate, slur, impugn
Traitorous- treacherous, disloyal, perfidious, duplicitous
Transgression- offence, crime, sin, misdeed
Translucent- pellucid, limpid, clear, diaphanous
Opp: opaque
Traumatic- upsetting, depressing, stressful, harmful
Treacherous- unfaithful, duplicitous, deceptive, dicey
Opp: loyal, faithful, reliable
Trenchant- keen acute, shrewd
Opp: vague
Trepidation- fear, apprehension, dead, alarm, panic
Opp: equanimity, composure
Trounce- crush, drub, pulverize, massacre
Truculent- aggressive, belligerent, obstreperous, pugnacious
Opp: cooperative, amiable
Truncate- shorten, cut, curtail
Opp: expand, lengthen, extend
Tumultuous- loud, deafening, uproarious, noisy, vociferous
Opp: orderly
Turbid- murky, opaque, cloudy, muddy
Opp: clear
Turbulent- chaotic, violent, agitated, boisterous
Opp: peaceful, calm
Turgid- pompous, inflated, pretentious, ornate
Opp: simple
Tyro- novice, fledgling, rookie, apprentice
Opp: veteran

Sabotage- vandalism, wrecking, destruction, impairment
Sacred- holy, hallowed, blessed, consecrated
Opp: secular, profane
Sagacious- wise, clever, knowledgeable, sensible
Opp: foolish
Salubrious- healthy, wholesome, pleasant
Opp: unhealthy, unpleasant
Sangfroid- composure, equanimity, self-possession, aplomb
Sanguine- optimistic, bullish, hopeful, positive
Opp: gloomy
Sarcastic- sardonic, ironic, derisive
Saturnine- gloomy, melancholic, moody, glum
Opp: cheerful
Savory- salty, spicy, piquant, luscious
Opp: sweet
Scalding- extremely hot, burning, blistering, piping hot
Scandalous- disgraceful, shocking, monstrous, criminal
Scant- little, minimal, negligible, meager
Opp: abundant, ample
Scarce- short supply, scanty, inadequate, deficient
Opp: plentiful
Scarcely- hardly, barely, almost not
Opp: often
Scathing- withering, blistering, devastating, ferocious
Opp: mild
Skepticism- doubtfulness, a pinch of salt, cynicism
Scorn- contempt, derision, derisiveness, mockery
Opp: admiration, respect
Scourge- whip, lash, strap, birch, switch
Opp: blessing, god sent
Scrooge- miser, penny pincher, niggard, skinflint
Opp: spendthrift
Scurrilous- defamatory, slanderous, libelous, scandalous
Scurry- hurry, hasten, run, scamper
Opp: amble
Sedition- rabble rousing, incitement, subversion, troublemaking
Sedulous- diligent, careful, meticulous, thorough
Seminal- influential, formative, ground breaking, pioneering
Seraphic- blissful, beatific, sublime, rapturous
Serendipitous- chance, accidental, coincidental, fluky
Servitude- slavery, enslavement, subjugation, domination
Opp: liberty
Shackle- chain, fetter, manacle, secure
Shirk- evade, dodge, avoid, side step
Shoddy- poor quality, inferior, second rate, cheap
Opp: quality, careful
Shudder- shake, shiver, quiver, vibrate
Sift- sieve, strain, filter, riddle
Simper- smile affectedly,
Sinuous- winding, serpentine, curving, twisting
Sketchy- incomplete, patchy, fragmentary, cursory
Opp: detailed
Skimpy- revealing, short, flimsy, indecent
Skullduggery- fraudulent, trickery, treachery
Slack- loose, limp, hanging, flexible
Opp: tight, taut
Slatternly- slovenly, untidy, ill groomed, frowzy
Slipshod- careless, lackadaisical, haphazard, disorganized
Opp: meticulous
Slither- slide, slid, slip, glide, crawl
Sneaky- sly, crafty, cunning, devious
Opp: honest
Sneer- smirk, curl of the lip, disparaging smile
Snobbish- elitist, snobby, superior, arrogant
Sobriety- soberness, clear headedness, abstinence, temperance
Sodden- soaking, drenched
Opp: arid
Soggy- mushy, squashy, pulpy, marshy
Sojourn- stay, visit, stop over, vacation
Solecism- mistake, error, blunder
Solicit- request, plead for, implore, supplicate
Solicitous- concerned, caring, considerate, attentive
Solidarity- unanimity, like-mindedness, agreement, accord, harmony
Soliloquy- monologue, speech, address, lecture, oration
Solitude- loneliness, isolation, seclusion, withdrawal
Somber- dark, drab, dingy, restrained
Opp: bright cheerful
Somnolent- sleepy, drowsy, tired, sluggish
Souvenir- memento, keepsake, trophy
Specious- misleading, deceptive, fallacious, unsound
Splendor- magnificence, sumptuousness, grandeur
Opp: ordinariness, simplicity, modesty
Splenetic- bad tempered, ill tempered, angry, petulant
Opp: good, humored
Spooky- eerie, sinister, ghostly, unearthly, mysterious
Sporty- athletic, fit, energetic, jaunty
Sprint- run, race, scamper, hurtle
Opp: walk
Spruce- neat, well groomed, smart, dapper
Opp: untidy
Spunk- courage, bravery, valor, confidence
Spurious- bogus, fake, false, counterfeit
Opp: genuine
Spurn- reject, rebuff, turn down, disdain
Opp: welcome, accept
Squabble- quarrel, disagreement, altercation, shouting match
Squalid- dirty, grubby, wretched, miserable
Opp: clean, pleasant, smart
Squander- waste, misspent, misuse, fritter away
Opp: manage, make good use of
Squeamish- nauseated, nervous, fastidious, honorable
Staid- sedate, respectable, conventional, unadventurous
Opp: frivolous, daring, informal
Startling- surprising, astonishing, unforeseen, staggering
Opp: predictable, ordinary
Stealthy- furtive, secretive, surreptitious, sneaky
Opp: open
Steep- precipitous, sheer, abrupt, sharp, perpendicular
Opp: gentle, gradual, reasonable
Stentorian- loud, thundering, ear splitting
Opp: quiet, soft
Stodgy- solid, substantial, starchy, indigestible, unimaginative
Opp: light, interesting, lively
Stoical- long suffering, uncomplaining, forbearing, patient
Opp: complaining, intolerant
Stooge- underling, minion, subordinate, henchman
Straggly- untidy, messy, straggling, disheveled
Strew- scatter, spread, disperse, bestrew
Stricture- criticism, condemnation, reproach, admonishment
Opp: praise, freedom
Stultify- impede, hamper, thwart, foil, suppress
Stumpy- short, stubby, squat, chunky
Opp: long, thin
Stygian- dark
Stymie- hamper
Suave- polished, refined, poised, dignified
Opp: unsophisticated
Superannuated- old-fashioned, obsolete, antiquated, disused
Superfluous- redundant, surplus, excess, extra
Supine- stretched out, yielding, spineless, docile
Opp: prostrate, strong
Surreptitious- secret, clandestine, sneaky, furtive, hidden
Opp: blatant
Surrogate- deputy, representative, relief, understudy
Surveillance- observation, scrutiny, inspection, spying, espionage
Susceptible- credulous, gullible, innocent, ingenuous
Opp: skeptical, immune, resistant
Swashbuckling- daring, adventurous, romantic, chivalrous
Opp: timid
Swindler- cheat, trickster, charlatan, hustler
Swingeing- extreme, serious, substantial, heavy
Opp: minor
Sycophant- truckler, toady, doormat, lackey

Rabid- extremist maniacal, passionate
Opp: moderate
Raconteur- narrator, anecdotalist
Rake- collect, gather, level, even out
Ramble- tramp, hike, trek, back pack
Rancid- rank, staled, turned, gamy, foul
Opp: fresh
Ramification- result, aftermath, outcome, effect
Rampant- unrestrained, unchecked, widespread
Opp: controlled, mild
Rampart- embankment, earthwork, battlement, outwork
Ramshackle- derelict, decrepit, neglected, random
Opp: sound
Rancorous- spiteful, hateful, resentful, malicious
Opp: amicable
Ransack- pillage, rob, raid, strip
Rapturous- joyful, elated, enraptured
Raucous- screeching, piercing, shrill, grating
Opp: soft, quiet
Ravenous- starving, famished, insatiable
Recalcitrant- intractable, defiant, rebellious
Opp: amenable
Recant- deny, repudiate, abjure
Recession- down turn , depression, slump, slow down
Opp: boom
Reconnaissance- survey, exploration, observation, investigation
Recrimination- counter-accusation, counter-cahrges
Recuperate- recover, convalesce, get well
Redundant- unnecessary, surplus, superfluous
Opp: employed
Refrain- holdback, desist, stop oneself, forbear
Refurbish- renovate, recondition, overhaul, restore
Regale- wine and dine, fete, feast, serve
Regurgitate- bring up, say again, reiterate
Reimburse- refund, pay back, recompense
Reincarnation- metempsychosis
Reinstate- restore, return, put back, reinstitute
Reiterate- say again, recapitulate, go over
Relegate- lower, put down, demote, degrade
Opp: upgrade
Relinquish- renounce, handover, stand down from
Reluctant- disincline, unenthusiastic, resisting
Opp: willing, eager
Reminisce- remember, recall, recollect, reflect on
Remorseless- ruthless, merciless, inhumane
Remuneration- pay, salary, earnings
Renegade- defector, deserter, mutineer
Renege- break, withdraw from, retreat from
Opp: honor
Renounce- relinquish, abandon, abdicate, surrender
Opp: assert, accept
Renunciation- relinquishment, giving up, abandonment, abnegation
Repercussion- result, effect, outcome, reverberation
Replenish- fill up, recharge, restock, restore
Opp: empty, exhaust
Replete- stuffed, glutted, well supplied, crammed
Repression- quashing, subduing, crushing, suppression
Reprieve- pardon, spare, amnesty
Reprimand- admonish, chastise, chide, upbraid
Opp: praise
Reprisal- counter-attack, vengeance, retribution, requital
Reproachful- reproving, critical, censorious, disparaging
Opp: approving
Reprobate- rascal, scoundrel, miscreant
Repudiate- renounce, abandon, cast off
Opp: embrace, confirm
Repugnance- disgust, abhorrence, repulsion, loathing
Requital- return, recompense, retribution
Rescind- reverse, overturn, overrule, annul
Opp: enforce
Rescission- rescindment, invalidation
Resonant- deep, sonorous, full bodied, vibrant
Resplendent- magnificent, brilliant, dazzling, glittering
Resurrect- restored to life, revitalize, rejuvenate
Resuscitate- revive, bring back to life, resurrect
Retaliate- reciprocate, avenge oneself
Reticence- restraint, inhibition, diffidence, shyness
Retrench- make cutbacks, be frugal, tighten one’s belt
Reverberation- echo, resounding, ringing, booming
Revere- admire, think highly of, esteem
Opp: despise
Rhetoric- command of language, way with words, magniloquence
Rigmarole- trouble, folderol, pantomime
Riot- upheaval, disturbance, scuffle, violence
Risqué- ribald, rude, bawdy, indecent
Rivalry- competitiveness, opposition, conflict, antagonism
Riveting- fascinating, gripping, engrossing, interesting
Opp: boring
Romp- play, frolic, frisk, gambol, prance
Rumbustious- boisterous
Rumpus- disturbance, commotion, uproar, furor
Ruse- ploy, stratagem, tactic, scheme
Rustic- rural, countrified
Rustle- kidnap, steal, abduct, thieve
Ruthless- pitiless, merciless, cruel, heartless
Opp: merciful