Unheard-of

adj

adj ·Uncommon ·College level

Definitions

Adjective
  1. 1
    Previously unknown; unprecedented.

    "He was […] none of your unconscionable blades, requiring impossible chops, and taking unheard-of pickles for granted."

Adjective
  1. 1
    previously unknown wordnet

Synonyms

All synonyms
ablebeguilingbewilderingbreakawaydifferentdisgraceful

Example

More examples

"John is the middle child and the favorite. A rather unheard-of phenomenon."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.