Aberration

Departure from what is normal.

Abeyance

Stops for a while and continues later- pause button.

Acerbic

Comment or style of speaking- sharp, forthright.

Acuity

Sharp/cleverness of thought, hearing, or vision.

Admonish

Warn or reprimand someone; to urge someone to or not to do something.

Adroit

Clever or skillful in using hands/mind. Ie. magicians, conmen

Aesthete

Appreciator of art and beauty or someone pretending to be so.

Altruistic

Very giving, unselfish, show more interest in other people than selves

Ameliorate

To make something seem better that's bad or unsatisfactory.

Amorphous

No definite or clear shape or form.

Antediluvian

Before the great flood, extremely old fashioned

Apocryphal

Doubtful authenticity, but told as if it's true

Arable

Ground suitable for growing crops

Ascetic

Very disciplined, obstains from many things

ie. monk, priest, nun

Assuage

Make an unpleasant feeling less intense, for emotions