Part of speech:
Brisk or lively in action:
Intense or bracing:
Keenly perceptive or understanding; acute:
(Archaic) Not sleeping; awake.
Find another word for observing. In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for observing, like: alert, keen, penetrating, attentive, watchful, looking on, intelligent, observant, observant, watching and observant.