7
dubitable(adjective, clear, open, certain, uncertain)
7
hairy(adjective, delicate, uncertain, unstable, doubtful)
7
obscure(adjective, uncertain, unreasonable, doubtful, vague)
7
suspicious(adjective, uncertain, nervous, doubtful, unsettled)
6
doubtable(adjective, uncertain, doubtful, unsettled, shaky)
6
in question(expression, adjective, idiom, clear, obscure)
6
indecisive(adjective, clear, open, delicate, certain)
6
puzzling(adjective, hard, open, fancy, rough)
6
shaky(adjective, delicate, uncertain, nervous, unstable)
6
unclear(adjective, clear, rough, certain, uncertain)
6
vague(adjective, clear, uncertain, definite, doubtful)
5
clouded(adjective, clear, certain, shaky, vague)
5
in doubt(expression, adjective, idiom, clear, certain)
5
incredulous
5
indefinite(adjective, uncertain, doubtful, vague, dubious)
5
indeterminate(adjective, clear, rough, certain, uncertain)
5
open to question(expression, adjective, idiom, uncertain, doubtful)
5
perplexing(adjective, hard, tough, fancy, rough)
5
ticklish(adjective, tough, difficult, delicate, uncertain)
5
touchy(adjective, delicate, uncertain, awkward, nervous)
10 years ago|21k views|share |citing 
APASmart Define. (2016). problematic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/problematic/thesaurus/synonyms
ChicagoSmart Define. 2016. "problematic thesaurus" https://smartdefine.org/problematic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, problematic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/problematic/thesaurus/synonyms>.
MLASmart Define. "problematic thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/problematic/thesaurus/synonyms>