Synonyms|330Antonyms|107|Broader|4Narrower|0Related|201

50 entries under adjective topic. ×

5
dubious(adverb, clear, honest, doubtful)
4
uncertain(adverb, indefinite, unmistakably, perceptibly)
3
unlikely(adverb, indefinite, unmistakably, possibly)
2
questionable
1
indecisive
1
indefinite(adverb, unmistakably, authentically, indisputably)
1
unsure
0
apocryphal(fake, questionable)
0
doubtful
0
abstruse
0
alleged
0
ambiguous
0
chancy
0
contentious
0
contestable
0
controversial
0
debatable
0
dingy
0
disputable
0
dubitable
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APASmart Define. (2015). doubtless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/doubtless/thesaurus/antonyms
ChicagoSmart Define. 2015. "doubtless thesaurus" https://smartdefine.org/doubtless/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, doubtless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/doubtless/thesaurus/antonyms>.
MLASmart Define. "doubtless thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/doubtless/thesaurus/antonyms>