Effect, v. Cause, produce, accomplish, change, achieve, create, execute, perform, realize, compass, effectuate, consummate, fulfil.

Ant. Obviate, frustrate, prevent, mar, hinder; deter, deflect.

Effective. Adequate, competent, effectual, sufficient; potent, cogent, efficacious, forcible, energetic, powerful; active, efficient, operative; conducive; serviceable, able, talented.

Ant. Weak, futile, nugatory, inconducive, inoperative, inadequate, impotent, incompetent, powerless.

Effectuate. Accomplish, effect, execute, achieve, secure, fulfil.

Ant. Prevent, hinder, abolish, defeat, nullify, stifle, blight.

Effeminate. Feminine, womanly, delicate; womanish, feeble, unmanly, timorous, enervated, soft, weak, emasculated.

Ant. Strong, manly, masculine, virile, manlike, vigorous, hardy, robust.

Effervesce. Boil, bubble, froth, foam, ferment, sparkle; express irrepressible emotion.

Ant. Subside; acquiesce, refrain, bear, brook, digest.