| A | B |
| absurd | ridiculous; unreasonable |
| acclaim | to approve; to praise |
| acquiesce | to agree; to accept passively |
| advocate | to support; to be in favor of |
| aloof | distant or removed; disinterested |
| ambiguous | having two or more possible meanings; vague |
| analysis | examination of something by studying its smaller parts |
| anarchy | absence of government; lawlessness |
| apathy | lack of feeling, emotion, interest, or concern |
| arbitrary | based on one's preference; whimsical |