The opposite of love — active hatred or rejection. Used of human enmity and of God's 'hating' evil and evildoers (Ps 5:5; 11:5). The prophets condemn those who 'hate good and love evil' (Mic 3:2).
Biblical hate is not just feeling but orientation — turning away from, rejecting, treating as an enemy. 'Jacob I loved, Esau I hated' (Mal 1:2-3; Rom 9:13) uses election language, not merely emotion.
The 'seven abominations' of Proverbs 6 clarify what God hates: pride, lies, murder, evil schemes, eagerness to sin, false witness, strife. Hatred of evil is inseparable from love of good in biblical ethics.