154 entries under adjective topic. ×

4
equivocal(clear, certain, ambiguous)
4
in doubt(idiom, clear, certain, ambiguous)
4
perplexing(hard, difficult, delicate, loose)
4
tricky(hard, difficult, uncertain, complex)
4
undecided
4
unsettled(uncertain, doubtful, dubious, questionable)
3
ambiguous(clear, obscure, certain, uncertain)
3
at issue(idiom, clear, certain, ambiguous)
3
awkward(difficult, complex, demanding, tricky)
3
borderline(clear, certain, ambiguous, debatable)
3
hypothetical
3
in dispute
3
indecisive(clear, obscure, certain, uncertain)
3
indefinite(obscure, uncertain, doubtful, dubious)
3
indeterminate(clear, obscure, certain, uncertain)
3
involved(hard, difficult, delicate, loose)
3
open to question(expression, idiom, debatable)
3
puzzling(hard, difficult, loose, complex)
3
suspicious
3
tough
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APASmart Define. (2015). problematical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/problematical/thesaurus/synonyms
ChicagoSmart Define. 2015. "problematical thesaurus" https://smartdefine.org/problematical/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, problematical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/problematical/thesaurus/synonyms>.
MLASmart Define. "problematical thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/problematical/thesaurus/synonyms>