IMPRACTICABILITY, IMPRACTICABLENESS
n.[See Impracticable. ] 1. The state or quality of being beyond human power, or the means proposed; infeasibility. 2. Untractableness; stubbornness.
IMPRACTICABILITY
Im *prac `ti *ca *bil "i *ty, n.; pl. Impracticabilities (.
impracticability
im pr à c ti ca b í l i ty 名詞 U 実行不可能 (性 ).