rapidly adverb Stress: first syllable 🤍 Save Syllables: rap-id-ly (3) English Definition Very quickly; at a great rate. Example Sentence Technology is changing very rapidly. US IPA /ˈræpɪdli/ 🔊 Listen US UK IPA /ˈræpɪdli/ 🔊 Listen UK Synonyms quickly swiftly fast speedily Antonyms slowly gradually leisurely Share this Word Facebook WhatsApp X Telegram Copy Link