80 entries under unclear topic. ×

7
cryptic(obscure, uncertain, doubtful, vague, dubious)
6
enigmatic(obscure, uncertain, doubtful, vague, dubious)
6
unknown(adjective, rough, strange, vague, mysterious)
6
unstable(adjective, loose, uncertain, doubtful, unsettled)
5
confusing(uncertain, vague, ambiguous, misleading)
5
dark(adjective, dull, weak, rough, strange)
5
generalized(adjective, indistinct, indistinguishable)
5
hesitant(adjective, open, uncertain, doubtful, vague)
5
inconclusive(adjective, obscure, uncertain, doubtful, vague)
5
perplexing(indistinct, indistinguishable)
5
problematic(adjective, uncertain, doubtful, vague, dubious)
4
woolly(adjective, rough, uncertain, vague)
3
bewildering(indistinct, indistinguishable)
3
murky(adjective, dull, obscure, gloomy, uncertain)
2
abstruse(adjective, uncertain, doubtful, vague, intellectual)
2
impalpable(adjective, insubstantial, indistinct, indistinguishable)
2
insecure(adjective, open, uncertain, doubtful, unsettled)
2
muddy(adjective, obscure, gloomy, uncertain, vague)
2
muffled(adjective, hazy, blurry)
2
tentative(adjective, open, uncertain, careful, doubtful)
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APASmart Define. (2015). indefinite thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/indefinite/thesaurus/synonyms
ChicagoSmart Define. 2015. "indefinite thesaurus" https://smartdefine.org/indefinite/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, indefinite thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/indefinite/thesaurus/synonyms>.
MLASmart Define. "indefinite thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/indefinite/thesaurus/synonyms>