QUIBBLE—cavil, evade, equivocate, shuffle.
QUICK—lively, ready, prompt, alert, nimble, agile, active, brisk, expeditious, adroit, fleet, rapid, impetuous, swift, sweeping, dashing, clever. (Slow.)
QUOTE—note, repeat, cite, adduce.
RABID—mad, furious, raging, frantic. (Rational.)
RACE—course, match, pursuit, career, family, clan, house, ancestry, lineage, pedigree.
RACK—agonize, wring, torture, excruciate, harass, distress. (Soothe.)
RACY—spicy, pungent, smart, spirited, vivacious, lively. (Dull, insipid.)
RADIANCE—splendor, brightness, brilliance, brilliancy, lustre, glare. (Dullness.)
RADICAL—organic, innate, fundamental, original, constitutional, inherent, complete, entire. (Superficial. In a political sense, uncompromising; antonym, moderate.)
RANCID—fetid, rank, stinking, sour, tainted, foul. (Fresh, sweet.)