What is the opposite efficient?

What is the opposite efficient? Efficiency is the practice of not wasting time and energy. When a machine is slow or multitasking– the opposite of efficient– we say that it is inefficient. What word is opposite of efficient? efficient. Antonyms: abortive, baseless, bootless, deceitful, delusive, empty, fruitless, futile, idle, inconstant, ineffectual, nugatory, null, profitless, shadowy, … Continue reading What is the opposite efficient?