40 entries under open topic. ×

8
wishy-washy(adjective, weak, uncertain, definite)
7
uncommitted(adjective, indifferent, uncertain, detached)
6
borderline(adjective, uncertain, definite, doubtful)
6
equivocal(adjective, uncertain, definite, doubtful)
6
of two minds(expression, adjective, idiom, uncertain)
5
iffy(adjective, uncertain, definite, doubtful)
4
ambiguous(adjective, uncertain, doubtful, unsettled)
4
insecure(adjective, uncertain, nervous, doubtful)
3
betwixt and between(expression, adjective, idiom, uncertain)
3
pendent(adjective, uncertain, definite, vague)
3
up in the air(expression, adjective, idiom, certain)
2
loose
2
dithering(adjective, definite, sure, hesitant)
2
hanging(adjective, unsettled, incomplete, imminent)
2
in doubt(expression, adjective, idiom, certain)
2
waffling(adjective, weak, uncertain, definite)
1
blowing hot and cold(expression, adjective, idiom, definite)
1
inexact(adjective, uncertain, disputed, marginal)
0
flexible
0
unlimited
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APASmart Define. (2015). undecided thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undecided/thesaurus/synonyms
ChicagoSmart Define. 2015. "undecided thesaurus" https://smartdefine.org/undecided/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, undecided thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undecided/thesaurus/synonyms>.
MLASmart Define. "undecided thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/undecided/thesaurus/synonyms>