25 entries under uncertain topic. ×

14
problematic(adjective, clear, open, difficult, certain)
12
debatable(adjective, certain, doubtful, dubious)
12
doubtful(adjective, clear, certain, dubious)
12
questionable(adjective, clear, certain, dubious)
10
dubious(adjective, clear, certain, doubtful)
9
moot(adjective, certain, doubtful, dubious)
8
arguable(adjective, certain, doubtful, dubious)
8
disputable(adjective, certain, doubtful, dubious)
6
dubitable(adjective, clear, obscure, certain)
6
enigmatic(adjective, hard, obscure, uncertainty)
6
iffy(adjective, clear, informal, certain)
5
chancy(adjective, clear, certain, dubious)
4
tricky(adjective, hard, difficult, complex)
4
unsettled(adjective, doubtful, dubious, questionable)
3
ambiguous(adjective, clear, obscure, certain)
3
indecisive(adjective, clear, obscure, certain)
3
indefinite(adjective, obscure, doubtful, dubious)
3
indeterminate(adjective, clear, obscure, certain)
3
paradoxical(hard, delicate, uncertainty, complex)
3
unresolved(adjective, settled)
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APASmart Define. (2015). problematical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/problematical/thesaurus/synonyms
ChicagoSmart Define. 2015. "problematical thesaurus" https://smartdefine.org/problematical/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, problematical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/problematical/thesaurus/synonyms>.
MLASmart Define. "problematical thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/problematical/thesaurus/synonyms>