shy

modif.

shy implies a shrinking from the notice of others and a reticence in approaching them; bashful implies such shyness as is displayed in awkward behavior and embarrassed timidity; diffident implies a lack of self-confidence that makes one reluctant to assert oneself; modest implies a reserved, unassuming manner in one who, because of ability, achievements, etc. might be expected to assert himself or herself strongly and often suggests moderation in behavior, speech, dress, etc.; demure, in current usage, suggests a decorously modest manner, often one that is affectedly so

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