Heedless
Heedless adjective - Not paying or showing close attention especially for the purpose of avoiding trouble.
Impervious to and heedless are semantically related. In some cases you can use "Impervious to" instead an adjective "Heedless".
Impervious to
Heedless and impervious to are semantically related. Sometimes you can use "Heedless" instead an adjective phrase "Impervious to".
Mutual synonyms
Cite this Source
Impervious to and Heedless. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/heedless/impervious_to
Heedless & Impervious to. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/heedless/impervious_to>.
Impervious to or Heedless. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/heedless/impervious_to.
Google Ngram Viewer shows how "heedless" and "impervious to" have occurred on timeline