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

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

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 ...the closure of outdated …

Learn what inefficient means with clear definitions, pronunciation, synonyms, and real-world examples. Simple explanations to help you use inefficient correctly.

in•ef•fi•cient /ˌɪnɪˈfɪʃənt/ adj. not efficient: an old, inefficient heating system. lacking in ability; incompetent. in•ef•fi•cien•cy, n. [countable], pl. -cies: There are many inefficiencies in the way that …

Jan 20, 2026 · Adjective inefficient (comparative more inefficient, superlative most inefficient) Not efficient; not producing the effect intended or desired; inefficacious.

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 meaning: not capable of producing desired results without wasting materials, time, or energy not efficient