The phonetic transcription of "heedless" is /ˈhiːdləs/ in British English and /ˈhiːdləs/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "heedless": inattentive, unmindful, reckless, negligent, careless.
Example usage of "heedless": "The driver was heedless and didn't see the stop sign.". More examples on the page.