| alacritous |
| alive(adjective, open, sensible, enthusiastic, sympathetic) |
| alive to |
| all there(expression, bright, active, wise, sharp-witted) |
| amicable(adjective, good, friendly, appropriate, cordial) |
| apathetic(adjective, quiet, indifferent, lifeless, inactive) |
| appraised(adjective, alert, familiar, wise, knowledgeable) |
| apprehensive(adjective, alert, familiar, wise, knowledgeable) |
| apprised(adjective, alert, familiar, wise, knowledgeable) |
| approving(adjective, friendly, agreeable, enthusiastic, positive) |
| aroused(adjective, easy, ready, subject, sensitive) |
| asleep(adjective, quiet, flat, indifferent, apathetic) |
| assenting(adjective, willing) |
| attached(adjective, good, friendly, loving, cordial) |
| au courant(expression, alert, familiar, wise, knowledgeable) |
| audible(visual, sound, physical, nervous, nerve) |
| audiovisual(visual, sound, physical, nervous, nerve) |
| auditory(visual, sound, physical, nervous, nerve) |
| aural(visual, sound, physical, nervous, nerve) |
| auricular(visual, sound, physical, nervous, nerve) |