Observative a. : Observing; watchful.

Example:
What is the study of non-repeatable, non-Observative things called?

Taxonomy
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Defination from the web:
Observative in the Online Dictionary. Meaning of Observative. Pronunciation of Observative. Translations of Observative. ... Observative. Observatoire Cantonal de Neuchâtel. Observatoire Congolais des Droits de l'Homme. Observatoire de Besançon. Observatoire de Besançon ...