Definition of omnisufficiency in US English:

omnisufficiency

noun

rare
  • The quality or fact of being sufficient in all respects.

Origin

Late 16th century; earliest use found in William Fulke (d. 1589), theologian and college head. Either from post-classical Latin omnisufficientia, or independently from omni- + sufficiency.

Pronunciation

omnisufficiency

/ˌɒmnɪsəˈfɪʃnsi/