OBSERV'ANT, a. 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, n. s as z. 1. A slavish attendant. [Not in use.]2. A diligent observer.