Unheard-of
Unheard-of adjective - Not known or experienced before.
Usage example: houses selling at unheard-of prices
Unknown is a synonym for unheard-of in knowledge topic. In some cases you can use "Unknown" instead an adjective phrase "Unheard-of", when it comes to topics like unique. popular alternative
Unknown
Unknown adjective - Not known or experienced before.
Usage example: becoming a father brought unknown joy to his life
Unheard-of is a synonym for unknown in knowledge topic. You can use "Unheard-of" instead an adjective "Unknown", if it concerns topics such as obscure. popular alternative
Nearby Words: unknowable, unknowing
Mutual synonyms
Related pairs
Cite this Source
Unknown and Unheard-of. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/unheard-of/unknown
Unheard-of & Unknown. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/unheard-of/unknown>.
Unknown or Unheard-of. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/unheard-of/unknown.
