6
factual
4
actual
3
real
3
concrete
3
confirmed
2
empirical(adjective, practical)
2
indisputable
2
truthful
1
calculated
1
definite
1
effective
1
genuine
1
hard
1
incontrovertible
1
measured
1
nonspeculative
1
nontheoretical
1
observational
1
positive
1
practical
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APASmart Define. (2015). hypothetical thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hypothetical/thesaurus/antonyms
ChicagoSmart Define. 2015. "hypothetical thesaurus" https://smartdefine.org/hypothetical/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, hypothetical thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hypothetical/thesaurus/antonyms>.
MLASmart Define. "hypothetical thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/hypothetical/thesaurus/antonyms>