observational
UK: ˌɒbzəˈveɪʃənl | US: ˌɑːbzərˈveɪʃənl
adj. relating to or based on observation
adj. involving the act of carefully watching or monitoring
The word "observational" derives from the Latin root "observare" (to watch, heed), combining "ob-" (toward) and "servare" (to keep, guard). The suffix "-ation" transforms the verb into a noun ("observation"), and "-al" converts it into an adjective. The term evolved in Middle English via Old French, retaining its core meaning of systematic watching or recording. This logical progression—from action (observe) to concept (observation) to descriptive quality (observational)—reflects its scientific and analytical applications.
The study relied on observational data rather than experiments.
Her observational skills made her an excellent detective.
The documentary took an observational approach to wildlife behavior.
Observational astronomy requires patience and precision.
Teachers often use observational assessments to evaluate student participation.