Natural
Nonformal
Nonformal adjective - Used in or suitable for speech and not formal writing.
Cite this Source
Nonformal and Natural. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/natural/nonformal
Natural & Nonformal. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/natural/nonformal>.
Nonformal or Natural. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/natural/nonformal.
Google Ngram Viewer shows how "natural" and "nonformal" have occurred on timeline