Available Definitions:
1) a. - Taking notice; viewing or noticing attentively; watchful; attentive; as, an observant spectator; observant habits.
2) a. - Submissively attentive; obediently watchful; regardful; mindful; obedient (to); -- with of, as, to be observant of rules.
3) n. - One who observes forms and rules.
4) n. - A sycophantic servant.
5) n. - An Observantine.