22 entries under speculative topic. ×

19
hypothetical(adjective, belief, uncertain, doubtful, apparent)
14
conjectural(adjective, belief, vague, apparent, supposition)
12
theoretical(adjective, uncertain, doubtful, vague, supposition)
11
supposed(adjective, belief, uncertain, doubtful, vague)
11
suppositious(adjective, belief, uncertain, doubtful, vague)
9
assumed(adjective, uncertain, doubtful, vague, supposition)
9
suppositive(adjective, belief, uncertain, doubtful, apparent)
8
putative(adjective, uncertain, doubtful, vague, supposition)
5
academic(adjective, uncertain, doubtful, vague, supposition)
5
reputed(uncertain, doubtful, supposed, alleged)
2
doubtful(uncertain, vague, imaginary, theoretical, supposed)
2
suspect(uncertain, doubtful, vague, imaginary, theoretical)
1
surmised(adjective, uncertain, doubtful, expected, supposed)
1
tentative(uncertain, doubtful, vague, academic)
1
uncertain(doubtful, vague, imaginary, theoretical, supposed)
0
figured(uncertain, doubtful)
0
guessing(uncertain, doubtful)
0
guesstimated(uncertain, doubtful)
0
on a hunch(expression, idiom, uncertain, doubtful)
0
on a long shot(expression, idiom, uncertain, doubtful)
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APASmart Define. (2015). suppositional thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/suppositional/thesaurus/synonyms
ChicagoSmart Define. 2015. "suppositional thesaurus" https://smartdefine.org/suppositional/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, suppositional thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/suppositional/thesaurus/synonyms>.
MLASmart Define. "suppositional thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/suppositional/thesaurus/synonyms>