barth 1

abate: to become less intense or widespread

abject: experienced or present to the maximum degree

abstemious: not self-indulgent, especially when eating and drinking

abstruse: difficult to understand; obscure

accessory: a thing that can be added to something else in order to make it more useful, versatile, or attractive.

acquit: free (someone) from a criminal charge by a verdict of not guilty.

acrimonious: angry or bitter (typically of speech or debate)

acumen: the ability to make good judgments and quick decisions, typically in a particular domain

adamant: refusing to be persuaded or to change one's mind

admonish: warn or reprimand someone firmly

adulation: excessive praise or admiration

aesthetic: concerned with beauty or the appreciation of beauty

affable: friendly, good-natured, or easy to talk to

aggravate: to make a situation or problem worse

agnostic: one who believes that the existence of a god can be neither proven nor disproven