observational

/ˌɑbzərˈveɪʃənəl/
adjective
  1. Relating to or based on watching and noticing things, especially in science or research.
    • Her observational skills helped her notice small details that others missed.
    • The study was purely observational, so the researchers did not change anything in the environment.
    • The scientist used observational methods to study animal behavior in the wild.
Antonyms
What does "observational" mean? | whatsthatwordmean | whatsthatwordmean