Synonyms|1.1kAntonyms|412|Broader|17Narrower|24Related|3.7k
1
unequivocal
1
unmistakable(obscure, uncertain)
1
unproblematic
1
unquestioned
1
upbeat
0
able to recognize(expression, idiom, uncertain, dubious)
0
aboveboard
0
absolutely
0
accomplish
0
achievable
0
acknowledged
0
adhesive
0
adventurous
0
airtight
0
alive to(expression, uncertain, dubious)
0
all-out
0
anticipated
0
apparently
0
apperceptive(uncertain, dubious)
0
arrant
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APASmart Define. (2016). doubtful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/doubtful/thesaurus/antonyms
ChicagoSmart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, doubtful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/doubtful/thesaurus/antonyms>.
MLASmart Define. "doubtful thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/doubtful/thesaurus/antonyms>