145 entries under vague topic. ×

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incalculable(doubtful, hesitant, changeable, unsure)
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incomplete(adjective, uncertain, unsettled, imprecise)
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inconstant(doubtful, hesitant, changeable, unsure)
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incredible(adjective, doubtful, dubious, suspicious)
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indirect(adjective, false, deceitful, tricky)
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inexhaustible(adjective, unknown, general, ambiguous)
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infinite(adjective, unknown, general, ambiguous)
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innumerable(adjective, unknown, general, ambiguous)
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irregular(doubtful, hesitant, changeable, unsure)
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lying(adjective, false, deceitful, tricky)
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multivocal
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open-ended(adjective, unknown, unfixed, undecided)
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polysemous
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risky(doubtful, unsure)
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superficial(indistinct, indistinguishable, imprecise)
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umbral
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unbelievable(adjective, doubtful, dubious, suspicious)
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unfocused
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unforeseeable(doubtful, hesitant, changeable, unsure)
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unlimited(adjective, unknown, general, ambiguous)
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APASmart Define. (2015). unclear thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unclear/thesaurus/synonyms
ChicagoSmart Define. 2015. "unclear thesaurus" https://smartdefine.org/unclear/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unclear thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unclear/thesaurus/synonyms>.
MLASmart Define. "unclear thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/unclear/thesaurus/synonyms>