Not many
Unheard of and not many are semantically related. In some cases you can use "Unheard of" instead an adjective phrase "Not many".
Unheard of
Not many and unheard of are semantically related. Sometimes you can use "Not many" instead an adjective phrase "Unheard of".
Mutual synonyms
Cite this Source
Unheard of and Not many. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/not_many/unheard_of
Not many & Unheard of. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/not_many/unheard_of>.
Unheard of or Not many. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/not_many/unheard_of.
Google Ngram Viewer shows how "not many" and "unheard of" have occurred on timeline