Bedeutung von “inefficient” im Essential American English Dictionary

inefficient

adjective us /ˌɪn·ɪˈfɪʃ·ənt/

inefficient people or things waste time, money, or effort, and do not achieve as much as they should:

an inefficient heating system
→ Opposite efficient

(Definition von “inefficient” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)