unabashed= 不畏惧 abashed
unabated=不衰的 abated
unable=不能的 able
unabsorbed= 未被吸收的 absorbed
unacceptable= 不能接受的 acceptable
unafraid=不怕的 afraid
unfaithful= 不忠 faithful
unmarried=未婚 married
unwell=不舒服 well
uncomfortable
unbelievable
unbreakable
unhappy
unhealthy
unlucky
unfriendly