Ingenuous
Ingenuous adjective - Free from any intent to deceive or impress others.
Usage example: photographs that capture the ingenuous smiles of young children at play
Plain is a synonym for ingenuous in behaviour topic. In some cases you can use "Plain" instead an adjective "Ingenuous", when it comes to topics like honest, naive.
Plain
Plain adjective - Free in expressing one's true feelings and opinions.
Usage example: their piano teacher is honest and plain, if not always tactful
Ingenuous is a synonym for plain in straightforward topic. Sometimes you can use "Ingenuous" instead an adjective "Plain", if it concerns topics such as behaviour, straightforward in speech.
Mutual synonyms
Cite this Source
Plain and Ingenuous. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/ingenuous/plain
Ingenuous & Plain. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/ingenuous/plain>.
Plain or Ingenuous. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/ingenuous/plain.
Google Ngram Viewer shows how "ingenuous" and "plain" have occurred on timeline