Meaning & use

inefficient

adjective·Academic

Not achieving maximum productivity, wasting time, energy, or resources in the process.

See it in a sentence

The old factory equipment was slow and inefficient compared to the new machines.

Answering every email individually is an inefficient way to communicate with a large team.

A note on using this word

Inefficient focuses on wasted resources or effort, while ineffective describes something that simply fails to produce the desired result.

Words with a similar meaning

wastefulineffective

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Words with an opposite meaning

efficientproductive

Make it your own

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