Thayer's Greek Lexicon

 1. hated, odious, hateful
2. hostile, hating, and opposing another
  1) used of men as at enmity with God by their sin
2a1. opposing (God) in the mind
2a2. a man that is hostile
2a3. a certain enemy
2a4. the hostile one
2a5. the devil who is the most bitter enemy of the divine
government