Heedless
Heedless adjective - Not paying or showing close attention especially for the purpose of avoiding trouble.
Impervious and heedless are semantically related. In some cases you can use "Impervious" instead an adjective "Heedless".
Impervious
Impervious adjective - Not allowing penetration (as by gas, liquid, or light).
Heedless and impervious are semantically related. Sometimes you can use "Heedless" instead an adjective "Impervious".
Nearby Word: imperviously
Mutual synonyms
Cite this Source
Impervious and Heedless. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/heedless/impervious
Heedless & Impervious. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/heedless/impervious>.
Impervious or Heedless. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/heedless/impervious.
Google Ngram Viewer shows how "heedless" and "impervious" have occurred on timeline