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deficient.

Adjective
Formal
MEANING

Not having enough of something needed, or failing to meet a required standard.

Use it for

Words that belong together

  • deficient in evidence
  • a deficient explanation
  • methodologically deficient

On the page

The explanation is deficient in its treatment of alternative causes.
A method can be deficient for one research question while remaining adequate for another.

Nearby words

Word forms
Base
deficient

Usage notes

Deficient in + missing element; also a deficient account. More deficient and most deficient are natural. Register: formal. Commonness: moderately common (qualitative editorial estimate, informed by dictionaries/corpus).

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