Available. Serviceable, useful, profitable, beneficial, advantageous.
Ant. Useless, inappropriate, irrelevant, inoperative.
Avaricious. Grasping, sordid, greedy, covetous, miserly, stingy.
Ant. Liberal, bountiful, extravagant, wasteful, prodigal, unselfish.
Avenge. Punish, retaliate, revenge, vindicate.
Ant. Forgive, pardon, overlook, condone, waive, forego, remit.
Avenue. Access, entrance, entry, approach, passage; alley, walk, street, road; route, channel.
Aver. Assert, declare, say, protest, affirm, asseverate, allege.
Ant. Deny, contradict, disavow.
Average. Medium, medial, middling, ordinary, tolerable, moderate, mediocre, passable.