What is the opposite of O.K.?

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

Contexts ▼▲ Adjective Opposite of bearing no injuries or harm Opposite of neither very good nor very bad Opposite of free from error Noun Opposite of official permission or approval for an action Interjection Opposite of an expression of agreement … more ▼ ▲ Adjective ▲ Opposite of bearing no injuries or harm in danger vulnerable accessible defencelessUK defenselessUS helpless susceptible unsafe assailable powerless unguarded unprotected endangered imperiledUS imperilledUK threatened violable at risk jeopardisedUK jeopardizedUS sitting duck “You are in danger, so come with me if you want to live!” Adjective ▲ Opposite of neither very good nor very bad outstanding different distinguished excellent exceptional extraordinary superior uncommon abnormal bad unsuitable noble unreasonable unusual extreme 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.” Noun ▲ Opposite of official permission or approval for an action prohibition proscription ban interdiction disapproval embargo refusal veto award denial disagreement discouragement honorUS honourUK opposition prevention question rejection grounding disfavourUK censure disfavorUS dissent unwillingness protest dissension difference objection Interjection ▲ Opposite of an expression of agreement fat chance no no way never not a chance not on your life negative nope absolutely not certainly not definitely not forget it most certainly not no siree no thanks nothing doing not on your nelly of course not “Fat chance! I'm not going to stand in the same room with someone who just destroyed me.” Find more words! 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Use * for blank tiles (max 2) Advanced Search Advanced Search Use * for blank spaces Advanced Search Advanced Word Finder See Also What is another word for O.K.? Use our Antonym Finder Nearby Words okay okayed okaying okayly okays OK'd OK ok ointment oink oily oil-water