What is another word for "retiring"?

Roget's Thesaurus (1911) lists these synonyms for "retiring": and, atmospheric, azure, background, bashful, bashfulness, beat, bice, bloom, blue, blueness, bluish, blush, blushing, bushel, candle, cast, ceremony, cerulean, cerulescent, cobalt, cold, constrained, constraint, countenance, coy, cyanogen, demure, demureness, diffidence, diffident, disposition, distance, draw, drum, eye, face, fame, find, give.