無法實施,不能實施的事項
Impracticability \Im*prac`ti*ca*bil"i*ty\, n.; pl. {Impracticabilities}. 1. The state or quality of being impracticable; infeasibility. --Goldsmith. 2. An impracticable thing. 3. Intractableness; stubbornness.
impracticability n : the quality of not being usable [syn: {impracticableness}] [ant: {practicability}, {practicability}]