Simple
Trustful
Trustful adjective - Having or showing trust in another.
Usage example: a trustful child quietly sleeping, sure in the knowledge that his parents would be there when he woke
Simple and trustful are semantically related in naive topic. You can use "Simple" instead an adjective "Trustful", if it concerns topics such as innocent, trusting, gullible.
Mutual synonyms
Cite this Source
Trustful and Simple. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/simple/trustful
Simple & Trustful. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/simple/trustful>.
Trustful or Simple. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/simple/trustful.
Google Ngram Viewer shows how "simple" and "trustful" have occurred on timeline