Antonyms for



Antonyms of adj certain

7 senses of certain

Sense 1:
certain(prenominal)

INDIRECT (VIA definite) -> indefinite

Sense 2:
certain(predicate) (vs. uncertain), sure (vs. unsure)

uncertain (vs. certain), unsure (vs. sure), incertain
ambivalentdoubtful, dubiousgroping
Sense 3:
certain(predicate) (vs. uncertain)

uncertain (vs. certain)
indefiniteup in the air
Sense 4:
certain (vs. uncertain), sure

uncertain (vs. certain)
chancy, fluky, flukey, iffycontingentup in the air
Sense 5:
sealed (vs. unsealed), certain


Sense 6:
certain, sure

INDIRECT (VIA reliable, dependable) -> unreliable, undependable
INDIRECT (VIA reliable, dependable) -> unreliable, undependable

Sense 7:
certain, sure

INDIRECT (VIA careful) -> careless
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