modest, unskilled, meek, lowly, mild, lowborn, low, humiliated, chagrin, small, more...

arrogant, boastful, conceited, pretentious, haughty

shy, self-effacing, unassuming, modest, self-deprecating, more...

most, late, west, very, young, old, same

modest approach,   not proud,   proud antonym,   say lowly,   low born,   low rank,   put in your place,   furthest from posh,   far from haughty,   not at all boastful