Heedless
Simple
Simple adjective - Lacking in worldly wisdom or informed judgment.
Usage example: developers mistakenly thought that the local residents were simple people who would sell their land for practically nothing
Heedless and simple are semantically related. Sometimes you can use "Heedless" instead an adjective "Simple".
Cite this Source
Simple and Heedless. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/heedless/simple
Heedless & Simple. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/heedless/simple>.
Simple or Heedless. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/heedless/simple.
Google Ngram Viewer shows how "heedless" and "simple" have occurred on timeline