92 entries under adjective topic. ×

12
doubtful(clear, open, delicate, certain)
11
marginal
10
unclear(clear, open, certain, uncertain)
9
equivocal(clear, open, delicate, certain)
8
ambiguous(clear, open, delicate, certain)
8
problematic(clear, delicate, certain, uncertain)
8
uncertain(clear, open, delicate, certain)
8
unsure(clear, open, delicate, certain)
7
dubitable(clear, certain, uncertain, doubtful)
7
indecisive(clear, open, delicate, certain)
7
questionable(clear, certain, uncertain, doubtful)
7
undecided(open, uncertain, definite, doubtful)
6
dubious(clear, open, delicate, certain)
6
indefinite(open, uncertain, vague, unclear)
6
moot
5
open(uncertain, nervous, unstable, doubtful)
5
suspicious(uncertain, nervous, doubtful, unsettled)
5
unsettled(open, delicate, uncertain, unstable)
5
unstable(delicate, uncertain, nervous, doubtful)
4
clouded(clear, certain, uncertain, doubtful)
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APASmart Define. (2015). borderline thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/borderline/thesaurus/synonyms
ChicagoSmart Define. 2015. "borderline thesaurus" https://smartdefine.org/borderline/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, borderline thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/borderline/thesaurus/synonyms>.
MLASmart Define. "borderline thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/borderline/thesaurus/synonyms>