ROBUST—strong, lusty, vigorous, sinewy, stalwart, stout, sturdy, able-bodied. (Puny.)
ROUT, v.—discomfit, beat, defeat, overthrow.
ROUTE—road, course, march, way, journey, path.
RUDE—rugged, rough, uncouth, unpolished, harsh, gruff, impertinent, saucy, flippant, impudent, insolent, saucy, churlish. (Polite, polished.)
RULE—sway, method, system, law, maxim, guide, precept, formula, regulation, government, test, standard.
RUMOR—hearsay, talk, fame, report, bruit.
RUTHLESS—cruel, savage, barbarous, inhuman, merciless, remorseless, relentless. (Considerate.)
SACRED—holy, hallowed, divine, consecrated, dedicated, devoted. (Profane.)
SAFE—secure, harmless, trustworthy. (Perilous.)
SANCTION—confirm, countenance, encourage, support, ratify, authorize. (Disapprove.)