Not kosher
Unfirm and not kosher are semantically related. In some cases you can use "Unfirm" instead an adjective phrase "Not kosher".
Unfirm
Unfirm adjective - Not firmly or solidly positioned.
Not kosher and unfirm are semantically related. Sometimes you can use "Not kosher" instead an adjective "Unfirm".
Cite this Source
Unfirm and Not kosher. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/not_kosher/unfirm
Not kosher & Unfirm. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/not_kosher/unfirm>.
Unfirm or Not kosher. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/not_kosher/unfirm.
Google Ngram Viewer shows how "not kosher" and "unfirm" have occurred on timeline