Accustom. Habituate, use, be wonted, harden, familiarize, train, addict, drill, break in, discipline.
Ant. Estrange, wean, alienate, dishabituate.
Acerbity. Sourness, acidity, tartness, bitterness, roughness, harshness, acrimony.
Ant. Sweetness, mildness, softness, gentleness, smoothness.
Ache, n. Pain, dull or continued pain, anguish, suffering, agony.
Ant. Pleasure, relief, ease, refreshment, delight.
Achieve. Accomplish, perform, complete, finish, realize, bring to pass, work out, conclude; obtain, acquire, gain, win, get.
Ant. Neglect, undo, mar, omit; fail of, lose.
Achievement. Accomplishment, performance, attainment, completion, consummation; exploit, deed, feat.
Ant. Forfeit, failure, negligence, frustration, blunder.