The word "rapidity" in English means: The quality of moving or happening very quickly., The rate at which something moves or happens..
The phonetic transcription of "rapidity" is /rəˈpɪd.ə.ti/ in British English and /rəˈpɪd.ə.t̬i/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "rapidity": speed, swiftness, celerity, alacrity.
Example usage of "rapidity": "The rapidity of his response surprised everyone.". More examples on the page.