Diffident

a.	1.	Wanting confidence in others; distrustful. You were always extremely diffident of their success. - Melmoth.
	2.	Wanting confidence in one's self; distrustful of one's own powers; not self-reliant; timid; modest; bashful; characterized by modest reserve. The diffident maidens, Folding their hands in prayer. - Longfellow.

Adj.	1.	diffident - showing modest reserve; "she was diffident when offering a comment on the professor's lecture"
	2.	diffident - lacking self-confidence; "stood in the doorway diffident and abashed"; "problems that call for bold not timid responses"; "a very unsure young man" Synonyms: shy, timid, unsure

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