Synonyms of diffident in English:

diffident


See US English definition of diffident

See UK English definition of diffident

adjective

1‘underneath his diffident exterior there was a passionate temperament’

SYNONYMS
shy, bashful, modest, self-effacing, unassuming, unpresuming, humble, meek, unconfident, unassertive, timid, timorous, shrinking, reserved, withdrawn, introverted, inhibited
insecure, self-doubting, doubtful, wary, unsure, apprehensive, uncertain, hesitant, nervous, reluctant, fearful
self-conscious, ill at ease, ashamed, abashed, embarrassed, shamefaced, sheepish
Scottish mim
informal mousy
ANTONYMS

confident, conceited