Synonyms and related words :
affected, anxious, apprehensive, artificial, awkward, bashful, confused, conscious, coy, demure, diffident, embarrassed, exhibitionist, formal, hesitant, ill at ease, inarticulate, insecure, mannered, modest, mousy, nervous, ostentatious, prim, reserved, retiring, self-effacing, shamefaced, shamefast, sheepish, shrinking, shy, skittish, stammering, stiff, stilted, timid, timorous, uncomfortable, uneasy, unsure