45 entries under undecided topic. ×

18
uncertain(adjective, open, weak, rough, certain)
17
indeterminate(adjective, rough, determined, uncertain, limited)
14
indefinite(adjective, open, rough, certain, strange)
14
unsettled(adjective, open, weak, rough, certain)
13
doubtful(adjective, open, weak, rough, determined)
13
vague(adjective, clear, open, rough, certain)
12
irresolute(adjective, open, weak, determined, uncertain)
9
dubious(adjective, open, rough, uncertainty, uncertain)
9
indecisive(adjective, open, weak, uncertainty, uncertain)
8
unclear(adjective, open, rough, determined, uncertain)
6
indistinct(adjective, obscure, rough, uncertain, doubtful)
6
unfixed(adjective, uncertain, doubtful, vague, hesitant)
6
unsure(adjective, open, weak, rough, certain)
6
wavering(adjective, open, weak, determined, uncertain)
5
ambiguous(adjective, open, weak, rough, dark)
5
faint(adjective, determined, unsettled, unclear, hazy)
5
hesitant(adjective, open, weak, uncertain, doubtful)
4
hesitating(adjective, weak, uncertain, doubtful, unsettled)
4
vacillating(adjective, weak, uncertain, doubtful, unsettled)
3
dependent(unsettled, incomplete, imminent, pendent)
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APASmart Define. (2015). undetermined thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/undetermined/thesaurus/synonyms
ChicagoSmart Define. 2015. "undetermined thesaurus" https://smartdefine.org/undetermined/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, undetermined thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/undetermined/thesaurus/synonyms>.
MLASmart Define. "undetermined thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/undetermined/thesaurus/synonyms>