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prevents - 20 thesaurus results
| Main Entry: | prevent |
| Part of Speech: | verb |
| Definition: | keep from happening or continuing |
| Synonyms: | anticipate, arrest, avert, avoid, baffle, balk, bar, block, check, chill*, cool, cork, counter, counteract, dam, debar, foil, forbid, forestall, frustrate, halt, hamper, head off, hinder, hold back, impede, inhibit, intercept, interdict, interrupt, limit, nip in the bud*, obstruct, obviate, preclude, prohibit, repress, restrain, restrict, retard, rule out, shut out, stave off, stop, thwart, defend against, forfend, hold off, keep lid on, put a stop to, put an end to, turn aside, ward off |
| Antonyms: | aid, allow, assist, cause, help, let go |
* = informal/non-formal usage
| Main Entry: | anticipate |
| Part of Speech: | verb |
| Definition: | act in advance of |
| Synonyms: | apprehend, block, delay, forestall, hinder, hold back, intercept, precede, preclude, prevent, be early, be one step ahead of, beat someone to it, prepare for, provide against |
| Antonyms: | be unready |
| Main Entry: | arrest |
| Part of Speech: | verb |
| Definition: | stop or slow |
| Synonyms: | block, can, check, delay, drop, end, freeze, halt, hinder, hold, inhibit, interrupt, knock off, obstruct, prevent, restrain, restrict, retard, scrub*, shut down, stall, stay, suppress |
| Antonyms: | activate, encourage, release, let go |
* = informal/non-formal usage
| Main Entry: | avert |
| Part of Speech: | verb |
| Definition: | thwart; avoid by turning away |
| Synonyms: | avoid, deflect, deter, divert, fend off, foil, forestall, frustrate, halt, preclude, prevent, rule out, stave off, turn, look away, shove aside, shunt, turn aside, turn away, ward off |
| Notes: | avert means 'prevent, turn away' and avoid means 'stay clear of, shun' overt means apparent or open to view or plain or public; avert means to prevent or turn away |
| Antonyms: | aid, help |
| Main Entry: | baffle |
| Part of Speech: | verb |
| Definition: | hinder |
| Synonyms: | beat, block, check, circumvent, dash, defeat, disappoint, foil, frustrate, impede, obstruct, prevent, ruin, thwart, upset |
| Antonyms: | abet, aid, assist, encourage, help, relieve, support |
| Main Entry: | balk |
| Part of Speech: | verb |
| Definition: | thwart |
| Synonyms: | baffle, bar, beat, check, circumvent, counteract, cramp, cramp one's style, dash, defeat, disappoint, disconcert, foil, forestall, frustrate, hinder, obstruct, prevent, ruin, stall, stop, throw a curve, throw monkey wrench in, upset the apple cart |
| Antonyms: | aid, help, make easier |
| Main Entry: | ban |
| Part of Speech: | verb |
| Definition: | officially forbid |
| Synonyms: | banish, bar, blackball*, curse, disallow, enjoin, exclude, halt, inhibit, interdict, outlaw, pass by, prevent, prohibit, proscribe, restrict, shut out, suppress, close down, close up, declare illegal, ice out, illegalize, pass up |
| Antonyms: | allow, permit |
* = informal/non-formal usage
| Main Entry: | bar |
| Part of Speech: | verb |
| Definition: | prohibit |
| Synonyms: | ban, boycott, circumvent, condemn, debar, deny, disallow, discountenance, discourage, eliminate, enjoin, except, exclude, exile, forbid, frustrate, hinder, interdict, interfere, limit, obstruct, ostracize, outlaw, override, preclude, prevent, refuse, reject, restrain, rule out, segregate, shut out, stop, suspend, freeze out, keep out |
| Antonyms: | advocate, allow, open, permit |
| Main Entry: | block |
| Part of Speech: | verb |
| Definition: | obstruct |
| Synonyms: | arrest, bar, barricade, block out, blockade, brake, catch, charge, check, choke, clog, close, close out, cut off, dam, deter, fill, halt, hinder, hold up, impede, intercept, occlude, plug, prevent, shut out, stall, stonewall, stop, stopper, stymie, tackle, thwart, close off, congest, hang up*, interfere with, shut off*, stop up, take out of play |
| Antonyms: | let up, open, let go, unblock |
* = informal/non-formal usage
| Main Entry: | cheat |
| Part of Speech: | verb |
| Definition: | frustrate, thwart |
| Synonyms: | baffle, check, defeat, deprive, foil, prevent |
| Main Entry: | check |
| Part of Speech: | verb |
| Definition: | hinder, restrain |
| Synonyms: | arrest, baffle, bar, bit, bottleneck*, bridle, checkmate, choke, circumvent, constrain, control, counteract, curb, cut short, delay, discourage, foil, frustrate, halt, harness, hold, hold back, impede, inhibit, interrupt, limit, moderate, neutralize, nip in the bud*, obstruct, obviate, pause, preclude, prevent, rebuff, reduce, repress, repulse, retard, snub, squelch, stay, stop, suppress, tame, terminate, thwart, withhold, hold down, hold in, keep back, play for time, rein in, slacken pace, slow down |
| Antonyms: | aid, allow, assist, expedite, help, indulge, liberate, permit |
* = informal/non-formal usage
| Main Entry: | circumvent |
| Part of Speech: | verb |
| Definition: | fool, mislead |
| Synonyms: | avoid, beat, beguile, bilk, bypass, cramp, crimp, deceive, detour, disappoint, dodge, dupe, elude, ensnare, entrap, escape, evade, foil, frustrate, hoodwink, outflank, outwit, overreach, prevent, queer, ruin, shun, sidestep, skirt, stave off, stump, stymie, thwart, trick, circumnavigate, get around, steer clear of, ward off |
| Antonyms: | aid, allow, assist, help, permit |
| Main Entry: | counteract |
| Part of Speech: | verb |
| Definition: | do opposing action |
| Synonyms: | annul, buck, cancel, check, contravene, correct, counterbalance, cross, defeat, fix, foil, frustrate, halt, hinder, invalidate, negate, negative, neutralize, offset, oppose, prevent, rectify, redress, resist, right, thwart, cancel out, countercheck, countervail, counterwork, go against |
| Antonyms: | aid, approve, assist, help, support |
| Main Entry: | defend |
| Part of Speech: | verb |
| Definition: | protect |
| Synonyms: | avert, battle, bulwark, cherish, conserve, contend, cover, entrench, espouse, fend off, fight, fortify, foster, garrison, guard, hedge, hold, house, insure, maintain, mine, nourish, oppose, preserve, prevent, resist, retain, safeguard, save, screen, secure, shelter, shield, stave off, sustain, take in, uphold, war, watch, withstand, beat off, care for, fight for, guard against, hold at bay, keep safe, look after, panoply, provide sanctuary, repel danger, ward off, watch over |
| Antonyms: | abandon, attack, desert, leave, quit, relinquish, resign, surrender |
| Main Entry: | delay |
| Part of Speech: | verb |
| Definition: | cause stop in action |
| Synonyms: | adjourn, arrest, bar, block, check, choke, clog, confine, curb, dawdle, defer, detain, deter, dilly-dally*, discourage, drag, encumber, filibuster, hamper, hold, impede, inhibit, interfere, keep, lag, linger, loiter, obstruct, postpone, prevent, procrastinate, prolong, protract, put off, repress, restrict, retard, shelve, slacken, stall, stave off, stay, suspend, table, tarry, temporize, withhold, bide time, gain time, hold over, intermit, keep back, lay over, prorogue, remand |
| Antonyms: | advance, dispatch, expedite, further, hasten, hurry, rush, speed |
* = informal/non-formal usage
| Main Entry: | deter |
| Part of Speech: | verb |
| Definition: | check, inhibit from action |
| Synonyms: | avert, block, caution, chill, cool, damp, dampen, daunt, debar, discourage, dissuade, divert, forestall, frighten, hinder, impede, intimidate, obstruct, obviate, preclude, prevent, prohibit, put off, restrain, rule out, scare, shut out, stave off, stop, turn off, warn, act like a wet blanket, disadvise, forfend, put a damper on, talk out of, throw cold water on |
| Antonyms: | encourage, instigate, persuade, promote, stimulate, support, turn on, urge, put on to |
| Main Entry: | discomfit |
| Part of Speech: | verb |
| Definition: | defeat, frustrate; confuse |
| Synonyms: | abash, annoy, baffle, balk, beat, bother, checkmate, confound, demoralize, discompose, disconcert, discountenance, disturb, embarrass, faze, fluster, foil, irk, outwit, overcome, perplex, perturb, prevent, rattle, ruffle, thwart, unsettle, upset, vex, worry, worst, take aback, trump |
| Antonyms: | surrender, yield |
| Main Entry: | discourage |
| Part of Speech: | verb |
| Definition: | deter, dissuade; restrain |
| Synonyms: | check, chill, control, curb, deprecate, discountenance, disfavor, divert, frighten, hinder, hold back, impede, inhibit, interfere, obstruct, prevent, put off, quiet, repress, scare, shake, turn off, warn, withhold, disadvise, disincline, hold off, indispose, keep back, talk out of, throw cold water on, turn aside |
| Antonyms: | encourage, inspire, spur on |
| Main Entry: | dissuade |
| Part of Speech: | verb |
| Definition: | talk out of |
| Synonyms: | chicken out*, counsel, deprecate, derail, deter, discourage, divert, exhort, expostulate, faze, hinder, prevent, prick, put off, remonstrate, throw off, thwart, turn off*, warn, advise against, caution against, cry out against, disadvise, disincline, lean on, persuade not to, throw a wet blanket on, throw cold water on, urge not to |
| Antonyms: | incite, persuade, talk into |
* = informal/non-formal usage
| Main Entry: | exclude |
| Part of Speech: | verb |
| Definition: | expel, forbid |
| Synonyms: | ban, bar, blackball*, blacklist, block, bounce, boycott, close out, count out, debar, disallow, eject, eliminate, embargo, estop, evict, except, get rid of, ignore, interdict, obviate, occlude, omit, ostracize, oust, pass over, preclude, prevent, prohibit, proscribe, put out, refuse, reject, remove, repudiate, rule out, shut out, sideline, suspend, throw out, veto, bate, drive out, force out, keep out, leave out, lock out, refuse admittance, set aside, shut the door on, ward off |
| Antonyms: | accept, add, admit, allow, include, incorporate, take on, welcome |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009, Dictionary.com, LLC. All rights reserved.

