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

• deficient
• insufficient
• lacking
• low
• scarce
• short
• shy
• wanting

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

Crafting the right prompt can mean the difference between receiving valuable output that streamlines your workflow or an inadequate response that leaves you frustrated. —Caroline Castrillon, Forbes.com, 17 Apr. 2025

Outside of ace Garrett Crochet, whose 1.38 ERA is currently eighth in MLB and third in the AL, Red Sox starters have been inadequate to say the least, with a collective 4.55 ERA — 22nd in MLB — and just four wins against eight defeats. —Arick Wierson, MSNBC Newsweek, 16 Apr. 2025

Later, in the same interview, Kennedy raised safety concerns about the measles vaccine, saying testing was inadequate. —Michelle R. Smith, Chicago Tribune, 15 Apr. 2025

On June 12th, a nurse prescribed an antidepressant, which, alone, was inadequate. —Sarah Stillman, New Yorker, 14 Apr. 2025

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