Source : WordNet®

unmanly
     adj 1: not possessing qualities befitting a man [syn: {unmanful}, {unmanlike}]
            [ant: {manly}]
     2: lacking in courage and manly strength and resolution;
        contemptibly fearful [syn: {pusillanimous}, {poor-spirited}]
     adv : without qualities thought to befit a man [syn: {unmanfully}]
           [ant: {manfully}]