338 entries under adjective topic. ×

6
unbounded(complete, absolute, unrestrained, endless)
6
unknown(rough, strange, vague, mysterious)
6
unstable(loose, uncertain, doubtful, unsettled)
5
capricious(loose, unpredictable, unreliable, variable)
5
dark(dull, weak, rough, strange)
5
debatable(uncertain, doubtful, vague, dubious)
5
diffuse
5
eternal(pause, endless, limitless)
5
featureless
5
generalized(unclear, indistinct, indistinguishable)
5
hesitant(open, uncertain, doubtful, vague)
5
illimitable(complete, unrestrained, endless, immense)
5
incalculable(complete, doubtful, vague, hesitant)
5
inchoate
5
incoherent(rough, chaotic, disorganized, unformed)
5
inconclusive(obscure, uncertain, doubtful, vague)
5
inconsistent(careless, loose, unpredictable, unreliable)
5
innumerable(vague, unknown, ambiguous, unfixed)
5
irregular(doubtful, vague, hesitant, unsure)
5
measureless(complete, unrestrained, endless, immense)
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APASmart Define. (2015). indefinite thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/indefinite/thesaurus/synonyms
ChicagoSmart Define. 2015. "indefinite thesaurus" https://smartdefine.org/indefinite/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, indefinite thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indefinite/thesaurus/synonyms>.
MLASmart Define. "indefinite thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/indefinite/thesaurus/synonyms>