55 entries under nervous topic. ×

23
uncertain(noun, adjective, clear, open, delicate)
18
doubtful(noun, adjective, clear, open, delicate)
15
dubious(adjective, clear, open, delicate, certain)
13
unsure(noun, adjective, clear, open, delicate)
12
problematic(adjective, clear, open, delicate, certain)
10
shaky(adjective, delicate, uncertain, unstable)
8
unreliable(adjective, delicate, uncertain, unstable)
7
insecure(adjective, delicate, uncertain, sensitive)
6
indeterminate(adjective, clear, certain, uncertain)
5
unstable(adjective, delicate, uncertain, irregular)
5
indecisive(adjective, clear, open, delicate, certain)
5
suspicious(adjective, uncertain, doubtful, unsettled)
5
untrustworthy(adjective, uncertain, doubtful, dubious)
4
borderline(adjective, clear, open, delicate, certain)
4
touchy(adjective, delicate, uncertain, sensitive)
4
unclear(adjective, clear, open, certain, uncertain)
4
undependable(adjective, uncertain, doubtful, dubious)
3
fluctuant(adjective, uncertain, irregular, doubtful)
3
fly-by-night(adjective, uncertain, doubtful, dubious)
3
unassured(adjective, uncertain, doubtful, dubious)
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APASmart Define. (2015). iffy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/iffy/thesaurus/synonyms
ChicagoSmart Define. 2015. "iffy thesaurus" https://smartdefine.org/iffy/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, iffy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/iffy/thesaurus/synonyms>.
MLASmart Define. "iffy thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/iffy/thesaurus/synonyms>