Abet
To encourage especially in wrong doing
Abhor
To detest
Acquit
To find not guilty of a fault or crime
Acrimony
Harsh temper or bitter feeling
Adamant
Unyielding
Adulation
Excessive praise
Affable
Friendly
Agnostic
One who believes that the existence of God is unknown and unknowable
Agrarian
Having to do with farms
Abate
To lessen in violence