Diffident
DIFFIDENT, adjective
1. Distrustful; wanting confidence; doubting of anothers power, disposition, sincerity or intention.
Be not diffident of wisdom.
Be diffident in dealing with strangers.
2. Distrustful of ones self; not confident; doubtful of ones own power or competency.
Distress makes the humble heart diffident
3. Reserved; modest; timid; as a diffident youth.