以字母 "a" 开头的形容词有很多，下面列举一些常用的：
able
abnormal
above-average
absent
absent-minded
absolute
abstract
abusive
acceptable
accessible
accidental
accurate
accusing
active
actual
acute
adaptable
addicted
adorable
adventurous
affectionate
affordable
afraid
aged
aggressive
agile
agonizing
alert
aligned
alone
already
alright
amaze
amiable
amusing
ancient
angry
anguished
annoyed
annual
anonymous
antique
anxious
apathetic
apologetic
approaching
appropriate
apt
arab
arctic
artistic
ashamed
aspiring
astute
attractive
augmented
auspicious
这些形容词的意思各不相同，具体的意思可以参考字典或者语言学习资料了解。