inefficace w języku angielskim

inefficient▼◼◼◼(not efficient; not producing the effect intended or desired)
adjective
[UK: ˌɪ.nɪ.ˈfɪʃnt] [US: ˌɪ.nə.ˈfɪ.ʃənt]You're inefficient. = Tu es inefficace.

nugatory▼◼◻◻(ineffective, invalid)
adjective
[UK: ˈnjuː.ɡə.tə.ri] [US: ˈnjuː.ɡə.tə.ri]