8
thoughtful(adjective, thought, thinking, absorbed, pensive)
7
debatable(adjective, shaky, vague, imaginary, unlikely)
7
doubtful(adjective, uncertain, vague, unclear, interested)
7
experimental(adjective, theoretical, exploratory)
7
imaginary(adjective, excellent, gentle, marvelous, vague)
7
inquisitive(adjective, curious)
7
questioning
7
visionary(adjective, gentle, wild, marvelous, unreasonable)
6
assumed(adjective, uncertain, doubtful, vague, supposition)
6
bad
6
dicey(adjective, delicate, uncertain, sensitive, unsettled)
6
dubious(adjective, doubtful, vague, unsure)
6
ideal(adjective, abstract, romantic, theoretical, creative)
6
idealistic(adjective, gentle, wild, absurd, abstract)
6
iffy(adjective, delicate, uncertain, sensitive, doubtful)
6
supposititious(adjective, supposition)
6
unproven(adjective, theoretical, experiment)
6
unrealistic(adjective, wild, unreasonable, rigid, strict)
5
cogitative(adjective, thoughtful, thinking, absorbed, pensive)
5
insecure(adjective, delicate, uncertain, sensitive, doubtful)
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APASmart Define. (2015). speculative thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/speculative/thesaurus/synonyms
ChicagoSmart Define. 2015. "speculative thesaurus" https://smartdefine.org/speculative/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, speculative thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/speculative/thesaurus/synonyms>.
MLASmart Define. "speculative thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/speculative/thesaurus/synonyms>