Author. Creator, maker, contriver, originator, inventor; writer, composer.
Ant. Destroyer, demolisher, spoiler, annihilator.
Authority. Power, government, empire, dominion; supremacy, control, influence, interest; order, precept, sanction, liberty, warranty; expert, master, connoisseur.
Ant. Anarchy, license, insubordination, misrule, lynch law; embargo, restriction, hindrance, proscription, prohibition, injunction, interdiction; weakness, wrong, usurpation.
Autocratic. Absolute, unlimited, tyrannical, oppressive, disdainful, overbearing, arrogant.
Ant. Subordinate, dependent, responsible, constitutional.
Automatic. Self-moving, self-acting.
Ant. Voluntary, free, optional.
Auxiliary, n. Assistant, helper, confederate, aid, ally, accessory, promoter, subordinate.
Ant. Opponent, antagonist, hinderer, opposer.