inadequate

adjective

in·​ad·​e·​quate (ˌ)i-ˈna-di-kwət 

: not adequate : not enough or good enough : insufficient

inadequate equipment

also : not capable

was inadequate as a leader

inadequately adverb

inadequateness noun

Synonyms of inadequate

• lacking
• insufficient
• scarce
• low

Examples of inadequate in a Sentence

These supplies are inadequate to meet our needs.

We were given very inadequate information.

I felt inadequate to the task.

Her brother's success and popularity always made her feel inadequate.

Recent Examples on the Web

Investigators concluded that several deaths in custody involving people detained for political reasons were linked to inadequate medical attention and mistreatment. — Antonio María Delgado, Miami Herald, 16 Sep. 2026

But common challenges involving information technology, inadequate staffing levels and other issues will help inform the commission’s work going forward. — Danielle J. Brown, Baltimore Sun, 15 Sep. 2026

If your attic has thin, uneven, or inadequate insulation, more of that heat can make its way into your living space. — Olivia McIntosh, Martha Stewart, 14 Sep. 2026

Indiana prison contractor was ordered to pay $760,000 over inadequate care. — Joe Mutascio, IndyStar, 11 Sep. 2026

Word History

First Known Use

1671, in the meaning defined above

Rhymes for inadequate

• adequate

Kids Definition

inadequate

adjective

in·​ad·​e·​quate (ˈ)in-ˈad-i-kwət 

: not adequate : not enough or not good enough

an inadequate supply of food

inadequately adverb

Medical Definition

inadequate

1 of 2 adjective

in·​ad·​e·​quate -i-kwət 

1

: not adequate : deficient

an inadequate dose

inadequate perfusion

inadequate diets

2

: lacking the capacity for psychological maturity or adequate social adjustment

an inadequate personality

inadequately adverb

inadequate

2 of 2 noun

: one who is inadequate especially in terms of social adjustment