Aforethought and Heedless
Opposite meaning words
Aforethought
Aforethought adjective - Planned in advance.
Heedless
Heedless adjective - Not paying or showing close attention especially for the purpose of avoiding trouble.
Aforethought is an antonym for heedless.
Cite this Source
Heedless and Aforethought. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/aforethought/heedless
Aforethought & Heedless. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/aforethought/heedless>.
Heedless or Aforethought. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/aforethought/heedless.
Google Ngram Viewer shows how "aforethought" and "heedless" have occurred on timeline