SAT TOEFL heedless Definition Showing a reckless lack of care or attention. Example "He drove heedless of the icy road conditions." Sign in to save SAT Quiz → TOEFL Quiz → ← heed heel → Study tips featuring "heedless" Map Each Word Into a Connected Network Map the Author's Attitude Before Reading Questions Track How TOEFL Words Behave With Others Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal