observational
AdjectiveUS[ob-zer-vey-shuh-nuhl]/ˌɑbzɚˈveɪʃənəl/5 syllables
Open English WordNet
Adjective (1)
- relying on observation or experiment“experimental results that supported the hypothesis”Synonyms: experimentaldata-basedOpposite theoreticSimilar empirical, empiric
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Webster's Dictionary (1913)
Ob′ser·va′tion·al adjective
Of or pertaining to observation; consisting of, or containing, observations. Thomas Chalmers
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54