| Main Entry: | |
| Part of Speech: | verb |
| Definition: | render inoperative; cripple |
| Synonyms: | attenuate, batter, blunt, damage, debilitate, disarm, disenable, disqualify, enervate, enfeeble, exhaust, hamstring, handicap, harm, hock, hogtie, hurt, immobilize, impair, incapacitate, invalidate, kibosh, knock out, maim, mangle, mar, mutilate, muzzle, paralyze, pinion, prostrate, put out of action, render incapable, ruin, sabotage, sap, shatter, shoot down, spoil, take out*, throw monkey wrench in, total*, unbrace, undermine, unfit, unstrengthen, weaken, wreck |
| Antonyms: | aid, assist, enable, help, improve |
| Main Entry: | ill-suited |
| Part of Speech: | adjective |
| Definition: | not suitable |
| Synonyms: | bad form, ill-fitted, ill-matched, ill-timed, improper, inappropriate, inapt, incompatible, incorrect, irrelevant, malapropos, mismatched, out of character, out of its element, out of place, unbecoming, unfit, unfitting, unseemly, unsuitable, wrong |
| Main Entry: | impair |
| Part of Speech: | verb |
| Definition: | harm, hinder |
| Synonyms: | blemish, blunt, cheapen, damage, debase, debilitate, decrease, destroy, deteriorate, devaluate, devalue, diminish, ding, disqualify, enervate, enfeeble, hurt, injure, invalidate, lessen, lose strength, make useless, mar, prejudice, queer, reduce, rough up, spoil, tarnish, total, tweak, undermine, unfit, vitiate, weaken, worsen |
| Antonyms: | aid, assist, help |
| Main Entry: | improper |
| Part of Speech: | adjective |
| Definition: | not suitable |
| Synonyms: | abnormal, at odds, awkward, bad form, discordant, discrepant, erroneous, false, ill-advised, ill-timed, imprudent, inaccurate, inadmissible, inadvisable, inapplicable, inapposite, inappropriate, inapt, incongruous, incorrect, inexpedient, infelicitous, inharmonious, inopportune, irregular, ludicrous, malapropos, odd, off-base, out-of-place, out-of-season, preposterous, unapt, unbefitting, uncalled-for, uncomely, undue, unfit, unfitting, unseasonable, unsuitable, unsuited, untimely, unwarranted, wrong |
| Antonyms: | appropriate, correct, fitting, proper, right, suitable |
| Main Entry: | inappropriate |
| Part of Speech: | adjective |
| Definition: | not proper, suitable |
| Synonyms: | bad form, disproportionate, foot-in-mouth, garbage*, ill-fitted, ill-suited, ill-timed, improper, inapplicable, inapropos, incongruous, inconsonant, incorrect, indecorous, inept, irrelevant, left-field, malapropos, off*, out of line, out of place, tasteless, unbecoming, unbefitting, undue, unfit, unfitting, unmeet, unseasonable, unseemly, unsuitable, untimely, way off, wrong, wrong-number |
| Antonyms: | appropriate, fitting, ok, proper, suitable |
| Main Entry: | incorrect |
| Part of Speech: | adjective |
| Definition: | wrong |
| Synonyms: | counterfactual, erroneous, false, faulty, flawed, imprecise, improper, inaccurate, inappropriate, inexact, mistaken, not trustworthy, out*, specious, unfitting, unreliable, unseemly, unsound, unsuitable, untrue, way off, wide of the mark, wrong number |
| Antonyms: | correct, right, true |
| Main Entry: | invalidate |
| Part of Speech: | verb |
| Definition: | render null and void |
| Synonyms: | X-out, abate, abolish, abrogate, annihilate, annul, blow sky-high, cancel, circumduct, counteract, counterbalance, disannul, discredit, disqualify, impair, negate, negative, neutralize, nix, nullify, offset, overrule, overthrow, quash, refute, revoke, shoot full of holes, undermine, undo, unfit, weaken |
| Antonyms: | approve, permit, validate |
| Main Entry: | unbecoming |
| Part of Speech: | adjective |
| Definition: | improper, unsuitable |
| Synonyms: | awkward, clumsy, discreditable, gauche, ill-suited, inappropriate, inapt, incongruous, indecent, indecorous, indelicate, inept, maladroit, malapropos, offensive, rough, salacious, tacky*, tasteless, unattractive, unbefitting, uncomely, undue, unfair, unfit, unfitting, unflattering, ungodly, unhandsome, unlovely, unseasonable, unseemly, unsightly, unsuited, untimely, untoward, unworthy |
| Antonyms: | acceptable, becoming, fitting, proper, seemly, suitable |
| Main Entry: | undue |
| Part of Speech: | adjective |
| Definition: | excessive, unnecessary |
| Synonyms: | disproportionate, exceeding, exorbitant, extravagant, extreme, forbidden, ill-timed, illegal, immoderate, improper, inappropriate, inapt, indecorous, inept, inordinate, intemperate, needless, overmuch, sinister, too great, too much, unapt, uncalled-for, unconscionable, underhanded, undeserved, unfair, unfitting, unjust, unjustifiable, unjustified, unmeasurable, unreasonable, unseasonable, unseemly, unsuitable, untimely, unwarrantable, unwarranted |
| Notes: | undo means to reverse an action or thing; undue means 'inappropriate' or 'excessive' |
| Antonyms: | moderate, reasonable, sensible |