ostentatious. Antonyms: unambitious, indifferent.

amenable, a. answerable, accountable, responsible; submissive,
tractable, responsive. Antonyms: unamenable, unaccountable, disobedient,
insubmissive.

amends, n. pl. reparation, indemnification, restitution, atonement,
redress, indemnity.

amenity, n. agreeableness, amiability, pleasantness, graciousness.

amiable, a. gracious, good-natured, benign, obliging, benignant,
affable. Antonyms: See unamiable.

amicable, a. friendly, peaceable, harmonious.

amiss, adv. improperly, incorrectly, wrongly.

amity, n. friendship, harmony, comity, good will.

amount, n. total, sum.

ample, a. spacious, extensive, roomy; abundant, copious, plentiful;
diffusive, prolix, protracted.

amuse, v. entertain, divert, beguile, recreate, please.

amusement, n. diversion, entertainment, beguilement, recreation,
relaxation, pastime, merriment, fun, sport, pleasure.