Ant. Slow, deliberate, cumbrous, lazy, retarded, moderate, gradual, dilatory, lingering, tardy.
Rapidity. Rapidness, haste, celerity, speed, velocity, agility, swiftness, fleetness, quickness, despatch.
Ant. Slowness, dilatoriness, tardiness, delay, deliberateness, moderation.
Rare. Curious, extraordinary, incomparable, odd, peculiar, remarkable, precious, scarce, singular, strange, uncommon, unusual, unprecedented, unique, unparalleled, infrequent.
Ant. General, usual, normal.
Rash. Precipitate, headlong, indiscreet, foolhardy, hasty, heedless, thoughtless, incautious, careless, inconsiderate, unwary.
Ant. Cautious, wary, discreet, thoughtful, prudent, calculating; timid, hesitating, reluctant.
Rational. Sane, sound, intelligent, reasonable, sensible, wise, discreet, judicious; reasoning, intellectual; sagacious, equitable, enlightened.
Ant. Irrational, insane, unsound, foolish, absurd, injudicious, unreasonable, preposterous, unintelligent, extravagant.
Raw. Unprepared, uncooked, immature, unripe, unseasoned, inexperienced, unpracticed, untried, unwrought, unfinished; bare, galled; chilly, bleak.