Definition of nul et non avenu in English:

nul et non avenu

adjective

  • Not having happened; (specifically of a legal agreement) annulled, completely invalidated.

Origin

1930s; earliest use found in American Journal of International Law. From French nul et non avenu from nul + et and + non avenu.

Pronunciation

nul et non avenu

/ˌnʌl eɪ ˌnɒn avəˈnjuː/