mad adjective Stress: first syllable 🤍 Save Syllables: mad (1) English Definition Mentally ill; insane, or extremely angry Example Sentence He was mad at me for being late. US IPA /mæd/ 🔊 Listen US UK IPA /mæd/ 🔊 Listen UK Synonyms angry insane crazy furious foolish Antonyms sane calm Share this Word Facebook WhatsApp X Telegram Copy Link