unabashed= 不畏惧unabated=不衰的unable=不能的unabsorbed= 未被吸收的unacceptable= 不能接受的unaccustomed = 不习惯的unaffected =不矫揉造作的unafraid=不怕的unfaithful= 不忠unmarried=未婚unlike=不同unsafe=不安全unrest=不安全untidy=不干净unwell=不舒服

example

excellent

exchange

exact

exactor

exalate

exalt

exaltation

exam

examinant