Deficient

medium

dih-FISH-unt

adjective

Definition

Not having enough of a specified quality or ingredient; inadequate

Examples

The diet was deficient in essential vitamins.
The report was deficient in supporting evidence.

Synonyms

inadequateinsufficientlackingwanting

Antonyms

abundantsufficientamplereplete

Categories

GRE Tip

Deficient is a medium-difficulty GRE word. On the GRE, you might see it paired with synonyms like "inadequate" or "insufficient" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "abundant".

Related GRE Words

Master deficient and 800+ GRE words

Learn through stories, practice with real GRE questions, and never forget with spaced repetition.