The meaning of INEFFICIENT is not efficient. How to use inefficient in a sentence.

INEFFICIENT definition: 1. not organized, skilled, or able to work in a satisfactory way: 2. working in a way that wastes…. Learn more.

Inefficient definition: not efficient; unable to effect or achieve the desired result with reasonable economy of means.. See examples of INEFFICIENT used in a sentence.

Inefficient people, organizations, systems, or machines do not use time, energy, or other resources in the best way. Their communication systems are inefficient in the extreme. ...the …

Definition of inefficient adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Find 226 different ways to say INEFFICIENT, along with antonyms, related words, and example sentences at Thesaurus.com.

inefficient (ˌɪnɪˈfɪʃənt) adj 1. unable to perform a task or function to the best advantage; wasteful or incompetent 2. unable to produce the desired result

If your car is inefficient, it gets terrible gas mileage and is expensive to drive. If something is efficient, it's productive and inexpensive. Inefficient has the opposite meaning, which is clear …

Synonyms for INEFFICIENT: unsuccessful, ineffective, counterproductive, ineffectual, inexpedient, worthless, useless, feckless; Antonyms of INEFFICIENT: efficient, effective, …

Nov 1, 2025 · inefficient (comparative more inefficient, superlative most inefficient) Not efficient; not producing the effect intended or desired; inefficacious