147 entries under adjective topic. ×

16
empirical(adverb, reasonable, sensible, new)
14
tentative(counterfeit, new, near, reserve)
13
trial(start, new, unsettled, temporary)
11
experiential(new, fresh, trial, factual)
11
test(start, new, unsettled, trial)
10
provisional(new, near, unsettled, extra)
9
pilot(start, new, trial, untried)
8
innovative(new, modern, pioneering, trailblazing)
8
pioneer(first, early, initiatory)
8
probationary(new, fresh, unsettled, trial)
8
speculative(theoretical, exploratory)
7
exploratory(new, unsettled, trial, penetrating)
7
observational
7
original
7
untried
6
data-based
5
developmental(new, fresh, trial, untried)
5
initial(fresh, trial, first, early)
5
new(new, trial, modern, inexperienced)
5
preliminary(new, trial, untried, tentative)
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APASmart Define. (2015). experimental thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/experimental/thesaurus/synonyms
ChicagoSmart Define. 2015. "experimental thesaurus" https://smartdefine.org/experimental/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, experimental thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/experimental/thesaurus/synonyms>.
MLASmart Define. "experimental thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/experimental/thesaurus/synonyms>