Unheard-of and Unthinkable

Unheard-of

Unheard-of adjective - Not known or experienced before.

Unthinkable and unheard-of are semantically related. In some cases you can use "Unthinkable" instead an adjective phrase "Unheard-of".

Unthinkable

Unthinkable adjective - Too extraordinary or improbable to believe.

Unheard-of and unthinkable are semantically related. You can use "Unheard-of" instead an adjective "Unthinkable".

Nearby Word: unthinking
Cite this Source
Unthinkable and Unheard-of. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/unheard-of/unthinkable
Unheard-of & Unthinkable. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/unheard-of/unthinkable>.
Unthinkable or Unheard-of. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/unheard-of/unthinkable.