87 entries under theoretical topic. ×

5
philosophical(adjective, thought, thoughtful, vague, supernatural)
5
pure(adjective, vague, abstract, logical)
5
theoretic(adjective, thoughts)
5
unproved(adjective, new, trial, untried)
4
analytical
4
fantastic(adjective, excellent, gentle, marvelous, vague)
4
idealized
4
putative(adjective, uncertain, doubtful, vague, supposition)
4
questionable(doubtful, shaky, vague, unsure, imaginary)
4
suppositious(adjective, uncertain, doubtful, vague, supposition)
3
dangerous(adjective, delicate, uncertain, sensitive, unsound)
3
fanciful(adjective, excellent, gentle, marvelous, vague)
3
indefinite(adjective, doubtful, unsettled, shaky, vague)
2
conceptive
2
hairy(adjective, delicate, uncertain, sensitive, unsound)
2
problematic(shaky, vague, risky, imaginary, unlikely)
2
suspect(uncertain, doubtful, shaky, vague, imaginary)
1
immaterial(excellent, gentle, marvelous, vague, abstract)
1
indeterminate(doubtful, shaky, vague, unlikely)
1
intangible(excellent, gentle, marvelous, vague, abstract)
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APASmart Define. (2015). speculative thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/speculative/thesaurus/synonyms
ChicagoSmart Define. 2015. "speculative thesaurus" https://smartdefine.org/speculative/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, speculative thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/speculative/thesaurus/synonyms>.
MLASmart Define. "speculative thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/speculative/thesaurus/synonyms>