| A | B |
| abstract | theoretical; not concrete |
| abstruse | difficult to understand |
| acclaim | praise; applaud |
| accolade | an award, or praise |
| acquiescent | reluctantly agreeable; compliant |
| acrimony | words or behavior filled with harshness or anger |
| adamant | refusing to change; stubborn, unyielding |
| adroit | skillful in physical activity, or in handling difficult situations |
| advocate | support; plead for; speak on behalf of |
| affable | friendly; easygoing |
| affirmation | positive statement; assertion; agreement |
| alienate | to push someone away, or cause him to separate from people |
| aloff | detached; apart; indifferent |
| altruistic | unselfish; caring |
| ambidextrous | able to use both hands with equal skill |
| ambiguous | unclear; vague; having several possible interpretations |
| ameliorate | to make an unpleasant situation better; to improve |
| amity | friendship |
| amorphous | without form or shape |
| ambivalence | indecision; feeling of being pulled in two directions |
| analogous | similar |
| anarchy | a lack of order; chaos |
| anathema | a religious curse, or the thing or person being cursed |
| antagonistic | in hostile competition; opposing |
| antiquated | too old to be useful; outdated; obsolete |
| antithesis | opposite |
| apathy | lack of intrest or concern |
| apex | top; highest point; summit |
| appease | calm; pacify |
| arbitrary | selected by random choice and without solid reason |