64 entries under doubtful topic. ×

23
hypothetical(adjective, uncertain, abstract, imaginary)
19
theoretical(adjective, wild, uncertain, unreasonable, useless)
17
risky(adjective, bad, heavy, intention)
15
suppositional(adjective, uncertain, vague, imaginary)
14
academic(adjective, philosophy, uncertain, vague)
13
uncertain(adjective, delicate, sensitive, unsettled)
9
chancy(adjective, delicate, uncertain, sensitive)
9
tentative(adjective, new, uncertain, unsettled)
8
supposed(adjective, uncertain, vague, imaginary)
6
assumed(adjective, uncertain, vague, supposition)
6
dubious(adjective, vague, unsure)
6
iffy(adjective, delicate, uncertain, sensitive)
5
insecure(adjective, delicate, uncertain, sensitive)
5
unreliable(vague, unsure, risky, hazardous)
4
putative(adjective, uncertain, vague, supposition)
4
questionable(shaky, vague, unsure, imaginary)
4
suppositious(adjective, uncertain, vague, supposition)
4
suppositive(adjective, uncertain, supposition)
3
indefinite(adjective, unsettled, shaky, vague)
3
unpredictable(adjective, vague, unsure, intention)
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APASmart Define. (2015). speculative thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/speculative/thesaurus/synonyms
ChicagoSmart Define. 2015. "speculative thesaurus" https://smartdefine.org/speculative/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, speculative thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/speculative/thesaurus/synonyms>.
MLASmart Define. "speculative thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/speculative/thesaurus/synonyms>