Definition of unperformance in English:

unperformance

noun

  • Non-performance. Also in early use: †failure to perform an action successfully (obsolete).

Origin

Early 17th century; earliest use found in Samuel Hieron (d. 1617), Church of England clergyman and devotional writer. From un- + performance.

Pronunciation

unperformance

/(ˌ)ʌnpəˈfɔːməns/