Focus on the pronunciation of inefficient
English definition of “inefficient”
› wasting time, money, energy, or other valuable possessions or qualities: Many of their industries are hopelessly inefficient. inefficiency
/ˌɪn·ɪˈfɪʃ·ən·si/ n [U] › She promised to end government inefficiency. inefficiently
/ˌɪn·əˈfɪʃ·ənt·li/ adv › He uses his time inefficiently.