88 entries under adjective topic. ×

2
imprecise
2
inconclusive
2
indecisive(uncertain, indefinite)
2
indistinct(obscure, ambiguous)
2
misty
2
unfixed
2
unsettled
2
unsteady
2
vagabond
2
visceral
1
open(limited, restricted, undecided, hindered)
1
risky(strong, safe, dangerous)
1
suspicious
1
tentative(uncertain, indefinite, conditional, experimental)
1
absurd(senseless, ridiculous)
1
ambivalent
1
shady
1
theoretical
1
touch-and-go
1
unconfident(calm, quiet)
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APASmart Define. (2016). certain thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/certain/thesaurus/antonyms
ChicagoSmart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, certain thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/certain/thesaurus/antonyms>.
MLASmart Define. "certain thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/certain/thesaurus/antonyms>