Definition of unconscionableness in English:

unconscionableness

Pronunciation /ˌʌnˈkɒnʃ(ə)nəblnəs/ /ˌʌŋˈkɒnʃ(ə)nəblnəs/

noun

  • The quality or condition of being unconscionable; unscrupulousness; unreasonableness; (now chiefly Law) gross unfairness.

Origin

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