Observant

Part of speech: noun (n.)

1. One who observes forms and rules. [Obs.] Hooker.

2. A sycophantic servant. [Obs.] Silly ducking observants, That stretch their duties nicely. Shak.

3. An Observantine.

Part of speech: adjective (a.)

1. Taking notice; viewing or noticing attentively; watchful; attentive; as, an observant spectator; observant habits. Wandering from clime to clime observant stray'd. Pope.

2. Submissively attentive; obediently watchful; regardful; mindful; obedient (to); -- with of, as, to be observant of rules. We are told how observant Alexander was of his master Aristotle. Sir K. Digby.