OBSERV'ANT, adjective s as z. 1. Taking notice; attentively viewing or noticing; as an observant spectator or traveler. 2. Obedient; adhering to in practice; with of. He is very observant of the rules of his order. We are told how observant Alexander was of his master Aristotle. 3. Carefully attentive; submissive. OBSERV'ANT, noun s as z. 1. A slavish attendant. [Not in use.] 2. A diligent observer.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI