Definition of unperfectness in English:

unperfectness

noun

rare
  • Imperfection.

Origin

Late Middle English; earliest use found in The Midland Prose Psalter. From un- + perfect + -ness, originally after post-classical Latin imperfectum and imperfectio imperfection.

Pronunciation

unperfectness

/(ˌ)ʌnˈpəːfɪk(t)nɪs/