Abashed
Embarrassed
Abate
Subside
Abdicate
Step down from power
Aberration
Deviation
Abhor
Detest
Abject
Hopeless
Abnegate
renounce
Abortive
Unsuccessful
Abridge
Shorten
Absolute
Total
Absolve
Forgive
Abstinent
Voluntarily avoiding
Abstract
Theoretical
Abstruse
Hard to understand
Abysmal
Wretched
Accolade
Award
Accost
Approach
Acerbic
Sour
Acquiesce
Comply
Acrid
Harsh
Acrimonious
Bitter
Acumen
Mental sharpness
Acute
Sharp
Adulation
Wild admiration