154 entries under adjective topic. ×

14
problematic(clear, open, difficult, certain)
12
debatable(certain, uncertain, doubtful, dubious)
12
doubtful(clear, certain, uncertain, dubious)
12
questionable(clear, certain, uncertain, dubious)
10
dubious(clear, certain, uncertain, doubtful)
9
baffling(hard, delicate, complex, tricky)
9
moot(certain, uncertain, doubtful, dubious)
8
arguable(certain, uncertain, doubtful, dubious)
8
difficult(hard, complex, awkward, demanding)
8
disputable(certain, uncertain, doubtful, dubious)
8
uncertain(clear, certain, doubtful, dubious)
7
knotty(hard, difficult, delicate, loose)
6
dubitable(clear, obscure, certain, uncertain)
6
enigmatic(hard, obscure, uncertainty, uncertain)
6
iffy(clear, informal, certain, uncertain)
5
chancy(clear, certain, uncertain, dubious)
5
in question(idiom, clear, certain, ambiguous)
5
intricate(hard, difficult, delicate, loose)
5
theoretical
4
controversial
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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>