38 entries under tentative topic. ×

16
empirical(adjective, adverb, reasonable, sensible, new)
13
trial(adjective, start, new, unsettled, temporary)
11
experiential(adjective, new, fresh, trial, factual)
11
test(adjective, start, new, unsettled, trial)
10
provisional(adjective, new, near, unsettled, extra)
9
pilot(adjective, start, new, trial, untried)
8
probationary(adjective, new, fresh, unsettled, trial)
7
exploratory(adjective, new, unsettled, trial, penetrating)
5
developmental(adjective, new, fresh, trial, untried)
5
preliminary(adjective, new, trial, untried)
4
trial-and-error(adjective, new, fresh, trial, untried)
2
testing(adjective, suspect, probationary, investigative)
2
unconcluded(adjective, new, fresh, trial, untried)
1
first stage(expression, adjective, new, fresh, trial)
1
makeshift(unsettled, extra, temporary, speculative)
1
on approval(expression, adjective, new, fresh, trial)
1
provisionary(adjective, unsettled, temporary, speculative)
1
stopgap(extra, temporary, auxiliary, contingent)
1
under probation(expression, adjective, new, fresh, trial)
0
balloon(adjective, probationary, investigative, examining)
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APASmart Define. (2015). experimental thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/experimental/thesaurus/synonyms
ChicagoSmart Define. 2015. "experimental thesaurus" https://smartdefine.org/experimental/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, experimental thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/experimental/thesaurus/synonyms>.
MLASmart Define. "experimental thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/experimental/thesaurus/synonyms>