The wù reading is the verb form 'to hate / loathe':
厌恶 (to loathe),
可恶 (detestable),
憎恶 (to abhor),
好恶 (likes and dislikes — paired with
好 'to love'), and the four-character
深恶痛绝 (to detest bitterly),
好逸恶劳 (to love ease and hate work). For the adjective 'evil', switch to è; for 'nauseous' in
恶心, switch to ě.