8
assumption(noun, concept, feeling, understanding, philosophy)
7
supposition(noun, concept, feeling, understanding, philosophy)
5
premise(noun, understanding, fancy, system, belief)
4
conjecture(noun, concept, feeling, understanding, philosophy)
4
hypothesis(noun, concept, feeling, understanding, philosophy)
4
presupposition(noun, feeling, fancy, belief, statement)
4
theory(noun, concept, feeling, philosophy, fancy)
3
basis(noun, understanding, plan, position, system)
3
foundation(noun, understanding, plan, position, system)
3
guesswork(noun, concept, feeling, understanding, philosophy)
3
presumption(noun, concept, feeling, understanding, philosophy)
3
speculation(noun, concept, feeling, understanding, philosophy)
2
axiom(theory, guesstimate, premise)
2
effrontery
2
guess(noun, concept, understanding, philosophy, plan)
2
inference(noun, feeling, fancy, belief, conclusion)
2
position(noun, understanding, philosophy, plan, system)
2
postulate(noun, concept, feeling, understanding, philosophy)
2
precondition(noun, theory, guesstimate, premise)
2
statement(supposition, postulation)
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APASmart Define. (2015). supposal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/supposal/thesaurus/synonyms
ChicagoSmart Define. 2015. "supposal thesaurus" https://smartdefine.org/supposal/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, supposal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/supposal/thesaurus/synonyms>.
MLASmart Define. "supposal thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/supposal/thesaurus/synonyms>