| Diffident 1. (a.) Lacking confidence in one's self; shy; timid; modest; bashful; characterized by modest reserve. 2. (a.) Wanting confidence in others; distrustful. Thesaurus Entries bashful, boggling, cautious, cowardly, coy, demure, demurring, deprecative, deprecatory, faltering, fearful, fearing, fearsome, goosy, hesitant, hesitating, in fear, jibbing, jumpy, modest, mousy, nervous, qualmish, rabbity, reluctant, retiring, scary, scrupling, scrupulous, self-deprecating, self-depreciating, self-depreciative, self-distrustful, self-doubting, self-effacing, shaky, shilly-shallying, shivery, shrinking, shy, skittery, skittish, squeamish, startlish, sticking, stickling, straining, tentative, timid, timorous, trembling, tremulous, trepidant, trigger-happy, unassertive, unassured, unselfconfident, unselfreliant | ![]() |