Definition of practicableness in US English:

practicableness

noun

  • The quality of being practicable; practicability.

Origin

Mid 17th century; earliest use found in Francis Nethersole (bap. 1587, d. 1659), diplomat and politician. From practicable + -ness.

Pronunciation

practicableness

/ˈpraktɪkəblnəs/