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Synonyms

insufficient

American  
[in-suh-fish-uhnt] / ˌɪn səˈfɪʃ ənt /

adjective

  1. not sufficient; lacking in what is necessary or required.

    an insufficient answer.

    Synonyms:
    deficient, scanty, inadequate
  2. deficient in force, quality, or amount; inadequate.

    insufficient protection.


insufficient British  
/ ˌɪnsəˈfɪʃənt /

adjective

  1. not sufficient; inadequate or deficient

"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

  • insufficiently adverb

Etymology

Origin of insufficient

First recorded in 1350–1400; Middle English, from Late Latin insufficient-, stem of insufficiēns; equivalent to in- 3 + sufficient

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.

Long-distance drivers grapple with unpredictable schedules and pay as well as insufficient time at home.

From The Wall Street Journal

Observers say those forces remain insufficient for anything beyond a short campaign of a few weeks or a high-intensity kinetic strike.

From Los Angeles Times

More than 60% of girls are expected to have insufficient physical activity, and more than half are projected to have poor diets.

From Science Daily

One of the candidates has met with some directors, he wrote, but the response from the board was “weak and insufficient.”

From Barron's

The appeal its stance does have for some white working class voters in the constituency was insufficient to counteract that disadvantage.

From BBC