What is the opposite of OK?

Need antonyms for OK? Here's a list of opposite words from our thesaurus that you can use instead.

Contexts ▼▲ Adjective Opposite of satisfactory, though not especially good Opposite of in a satisfactory physical or mental state Opposite of acceptable or appropriate by conventional standards Opposite of moderate or average in size, amount, or rank Opposite of allowed or permitted according to the rules or laws Opposite of not special or different in any way Opposite of free from error Opposite of in a satisfactory mental or physical state Opposite of not hurt or damaged in any way Opposite of following the established standards of behavior or manners Adverb Opposite of in a satisfactory manner or to a satisfactory extent Noun Opposite of an authorization or approval Verb Opposite of to give approval or authorization to Interjection Opposite of used to express agreement or acceptance … more ▼ ▲ Adjective ▲ Opposite of satisfactory, though not especially good unsatisfactory inadequate deficient unacceptable insufficient terrible bad poor disappointing dissatisfactory dissatisfying inferior lacking pathetic deplorable lousy substandard disagreeable mediocre rotten unworthy subpar undesirable wanting weak offensive regrettable suboptimal intolerable junky unsuitable off unreasonable wretched displeasing lame below par no good not good enough not up to scratch exceptional outstanding unfit appalling paltry unrespectable crummy vexing diabolical atrocious abysmal wrong not up to par below standard small sick unhealthy miserly cheap corrupt insufferable unpleasant upsetting sub-standard half-pie faulty imperfect horrible horrid disastrous horrendous abominable defective garbage unreal inappropriate unreliable sub-par poor quality second-rate poor-quality not up to snuff no great shakes something to write home about dismal rough excellent awful dire A1 marvellousUK tops inadmissible superb first-class extraordinary leaving a lot to be desired blocked marvelousUS obstructed superior dreadful miserable direful lamentable disconcerting pitiful execrable pitiable abject egregious unhappy unsuccessful languishing incomplete going badly unfortunate unlucky more ❯ “There were numerous complaints about the unsatisfactory mail service.” Adjective ▲ Opposite of in a satisfactory physical or mental state unwell ill sick off down peaked impaired peaky queasy nauseous unsound feverish nauseated sickened crook feeble sickly ailing unhealthy infirm seedy weak debilitated funny indisposed laid-up liverish ropy unsatisfactory below par not well off colour under the weather worse for wear diseased unfit pallid anemicUS afflicted a wreck in poor health off-colorUS off one's feet anaemicUK off-colourUK laid up run-down laid low out of sorts more ❯ “I'm not crazy, I'm just a little unwell, I know that you can't tell.” Adjective ▲ Opposite of acceptable or appropriate by conventional standards unacceptable intolerable inappropriate objectionable insufferable obnoxious awful dreadful exceptionable bad disgraceful inadequate undesirable deplorable dismal lousy offensive poor reprehensible disappointing imperfect questionable repugnant terrible appalling contemptible rotten unsatisfactory horrible improper unreasonable condemnable dissatisfactory horrendous horrid lamentable odious atrocious indefensible loathsome miserable unseemly dodgy unappealing vile wrong insupportable disagreeable impermissible “Romesh loves his son but concedes he is an unacceptable human being.” Adjective ▲ Opposite of moderate or average in size, amount, or rank abnormal bad excellent exceptional extraordinary extreme noble superior uncommon unreasonable unsuitable unusual remarkable outstanding exciting out-of-the-way odd strange distinguished different noteworthy significant cream of the crop rare seldom unfamiliar infrequent interesting impressive notable riveting engaging intriguing gripping engrossing absorbing involving fascinating inspired important imaginative unrivalledUK distinctive unexcelled superb unsurpassed incomparable unrivaledUS great peculiar more ❯ Adjective ▲ Opposite of allowed or permitted according to the rules or laws inadmissible banned barred forbidden impermissible interdicted prohibited proscribed verboten disallowed illegitimate inapplicable inappropriate intolerable irrelevant unacceptable unfair unjust unsuitable wrong unlawful illegal illicit unauthorizedUS unpermissible unbearable unauthorisedUK Adjective ▲ Opposite of not special or different in any way extraordinary exceptional unusual amazing astonishing astounding awesome breathtaking conspicuous cracking dazzling excellent fab fabulous fantastic great incredible magnificent marvellousUK marvelousUS memorable noteworthy spectacular stellar stunning stupendous super superb terrific unbelievable unforgettable wonderful A1 exquisite fine grand peerless preeminent sensational splendid sterling swell top out-of-the-way distinguished impressive inspired notable novel outstanding special superior complex complicated decorated embellished intelligent intricate remarkable sophisticated brilliant first-class “We were loved and cherished by extraordinary teachers, with whom I remained friends with in later life.” Adjective ▲ Opposite of free from error incorrect wrong erroneous fallacious illogical mistaken false iffy inaccurate untrue defective faulty imperfect improper inexact off specious unreliable biased flawed imprecise invalid unfitting unsuitable “She admitted that parts of her statement were incorrect and acknowledged providing false evidence at the inquiry.” Adjective ▲ Opposite of in a satisfactory mental or physical state endangered exposed imperiledUS imperilledUK insecure liable open subject to susceptible threatened unsafe violable vulnerable hurt damaged in danger sick unhealthy accessible defencelessUK defenselessUS helpless assailable powerless unguarded unprotected at risk jeopardizedUS sitting duck jeopardisedUK Adjective ▲ Opposite of not hurt or damaged in any way harmed injured damaged hurt impaired scarred scathed Adjective ▲ Opposite of following the established standards of behavior or manners improper discourteous impolite inappropriate intolerable rude ungraceful unmannerly unsatisfactory casual easygoing incorrect indecent indecorous indelicate informal laid-back unbecoming unceremonious ungenteel unseemly unacceptable unfitting unsuitable flawed imprecise “His mother advised that it was inappropriate for him to not wear a morning suit or a lounge suit.” Adverb ▲ Opposite of in a satisfactory manner or to a satisfactory extent badly unsatisfactorily poorly bad terribly deficiently awfully dreadfully inadequately lousily unacceptably insufficiently egregiously ineptly defectively amateurishly appallingly incompetently woefully atrociously deplorably inefficiently pitifully abysmally feebly shoddily blunderingly clumsily crummily execrably wretchedly awkwardly crudely dismally faultily intolerably maladroitly miserably unskillfully diabolically haphazardly ill lamentably unsuitably ineffectively incompletely ineffectually perfunctorily imperfectly sketchily “Worse still, nowhere were Shakespeare's plays performed as badly as in England.” Noun ▲ Opposite of an authorization or approval disapproval prohibition proscription interdiction ban refusal boycott interdict denial injunction disallowance veto forbiddance rejection opposition disfavorUS disfavourUK disagreement disapprobation red light criticism dissatisfaction displeasure condemnation dislike objection dissent censure animadversion remonstration deprecation castigation grounding discontent discontentment demurral unwillingness protest dissension difference blame thumbs down reproof hatred stricture embargo honorUS award prevention honourUK discouragement question more ❯ “A formal disapproval would almost automatically lead to the resignation of the government.” Verb ▲ Opposite of to give approval or authorization to veto decline deny reject ban disallow forbid boycott interdict refuse disapprove prohibit proscribe bar block negative prevent disfavorUS disfavourUK dismiss negate overrule preclude quash stop discountenance embargo hinder nullify outlaw squash blackball disagree disapprove of throw out turn down frown on frown upon oppose invalidate repudiate contradict protest keep hold constrain debar disqualify withhold halt revoke dissent restrict resist criminalizeUS rule out impede fight sell obstruct criminaliseUK discourage inhibit object dispute differ disorganize buy restrain argue limit deter dissent from withstand discommend reprove cancel repeal spurn abrogate disaffirm destroy annul renounce disprove dispraise object to enjoin exclude banish black suppress hurt condemn declare ineligible more ❯ “The President has threatened to veto the bill if the desired add-ons are not included.” Interjection ▲ Opposite of used to express agreement or acceptance no nay no way nope negative nah naw absolutely not certainly not definitely not most certainly not not at all not really of course not scarcely never fat chance not a chance not on your life no thanks forget it no siree nothing doing disagreed nae not on your nelly “No! I am not cool with that!” Find more words! 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Sentences with the word OK What is the past tense of OK? What is the plural of OK? What is the adverb for OK? What is the adjective for OK? What is the noun for OK? Translations for OK Use our Antonym Finder Nearby Words O.K. okay okayed okaying okayly okays ok ointment oink oily oil-water oil the wheels of