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All certain antonyms

cer·tain
C c

pronoun certain

  • all — You use all to indicate that you are referring to the whole of a particular group or thing or to everyone or everything of a particular kind.

adj certain

  • indefinite — not definite; without fixed or specified limit; unlimited: an indefinite number.
  • uncertain — not definitely ascertainable or fixed, as in time of occurrence, number, dimensions, or quality.
  • unsure — not certain or confident: He arrived at the party unsure of his welcome.
  • hesitant — hesitating; undecided, doubtful, or disinclined.
  • questionable — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.
  • unreliable — not reliable; not to be relied or depended on.
  • undecided — not decided or determined.
  • unpredictable — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
  • doubtful — of uncertain outcome or result.
  • unconfident — lacking self-assurance
  • dubious — doubtful; marked by or occasioning doubt: a dubious reply.
  • faltering — to hesitate or waver in action, purpose, intent, etc.; give way: Her courage did not falter at the prospect of hardship.
  • unfixed — to render no longer fixed; unfasten; detach; loosen; free.
  • dishonest — not honest; disposed to lie, cheat, or steal; not worthy of trust or belief: a dishonest person.
  • counterfeit — Counterfeit money, goods, or documents are not genuine, but have been made to look exactly like genuine ones in order to deceive people.
  • unreal — not real or actual.
  • unclear — free from darkness, obscurity, or cloudiness; light: a clear day.
  • indistinct — not distinct; not clearly marked or defined: indistinct markings.
  • vague — not clearly or explicitly stated or expressed: vague promises.
  • false — not true or correct; erroneous: a false statement.
  • invalid — an infirm or sickly person.
  • doubted — to be uncertain about; consider questionable or unlikely; hesitate to believe.
  • obscure — (of meaning) not clear or plain; ambiguous, vague, or uncertain: an obscure sentence in the contract.
  • inexact — not exact; not strictly precise or accurate.
  • unimportant — of much or great significance or consequence: an important event in world history.
  • usual — habitual or customary: her usual skill.
  • imprecise — not precise; not exact; vague or ill-defined.
  • general — of or relating to all persons or things belonging to a group or category: a general meeting of the employees.
  • common — If something is common, it is found in large numbers or it happens often.
  • ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
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