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Showing results for inadequate. Search instead for inadequate-stimulus.
Synonyms

inadequate

American  
[in-ad-i-kwit] / ɪnˈæd ɪ kwɪt /

adjective

  1. not good enough for the purpose; inept or unsuitable.

    This old tent they gave us is completely inadequate—it’s equally bad at keeping out both the rain and the bugs!

    Synonyms:
    imperfect, defective, incommensurate, incompetent, inapt, incomplete
    Antonyms:
    sufficient
  2. not sufficient for the purpose; not enough.

    The set of linens we received was so inadequate, we were asking friends for a loan of napkins and tablecloths.

  3. Psychiatry. ineffectual in response to emotional, social, intellectual, and physical demands in the absence of any obvious mental or physical deficiency.


inadequate British  
/ ɪnˈædɪkwɪt /

adjective

  1. not adequate; insufficient

  2. not capable or competent; lacking

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • inadequacy noun
  • inadequately adverb

Etymology

Origin of inadequate

First recorded in 1665–75; in- 3 + adequate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Evolutionary theory is no longer heretical, Galileo has been issued a hall pass to heaven, and quite a few sincere if entirely inadequate apologies have been issued, mostly to people long dead.

From Salon • Apr. 5, 2026

People use social media to keep up with their friends and family, but teens can also feel inadequate, sad or anxious when they compare themselves to a curated version of other people’s lives online.

From Los Angeles Times • Mar. 28, 2026

McArthur accused those who rejected the bill of a "woefully inadequate response to the suffering and trauma experienced by dying Scots and their families".

From BBC • Mar. 17, 2026

John Kwoka, a professor of economics at Northeastern University, said the settlement appeared "inadequate."

From Barron's • Mar. 9, 2026

Mrs. Elton’s resources were inadequate to such an attack.

From "Emma" by Jane Austen