What is another word for "reserved"?

Roget's Thesaurus (1911) lists these synonyms for "reserved": and, background, bashful, bashfulness, beat, between, bite, blush, blushing, bridle, bushel, button, candle, cast, cave, ceremony, close, concealment, constrained, constraint, costive, costiveness, counsel, countenance, coy, curt, curtness, demure, demureness, diffidence, diffident, disposition, distance, draw, drum, dumb, escape, eye, face, fame.