diffident

Definition of Diffident in English :

1. diffident

showing modest reserve

Example Sentences:
'she was diffident when offering a comment on the professor's lecture'

2. diffident, shy, timid, unsure

lacking self-confidence

Example Sentences:
'stood in the doorway diffident and abashed'
'problems that call for bold not timid responses'
'a very unsure young man'

WordNet Lexical Database for English. Princeton University. 2010.

Diffident

adjective

lacking self-confidence; timid; shy

adjective

full of diffidence; lacking self-confidence; timid; shy

adj.

Lacking or marked by a lack of self-confidence; shy and timid: He was too diffident to express his opinion.