Englishunassuming
adjective
a quiet unassuming man:
modest, self-effacing, humble, meek, mild, retiring, demure, restrained, reserved, withdrawn, reticent, diffident, shy, bashful, timid, timorous, shrinking, unconfident, insecure, unassertive;
unobtrusive, unostentatious, unpretentious, unaffected, natural, genuine, simple, artless, ingenuous.
▷antonyms bold, boastful, pretentious.
unassuming Oxford Dictionary of English