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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.

A legion of zombie companies—those whose revenue is insufficient to cover debt repayment and that are sustained only by forbearance from lenders—have long been a drain on Japan’s economy.

From The Wall Street Journal

Some software companies acknowledge that current defenses against these attacks are insufficient.

From Barron's

Some software companies acknowledge that current defenses against these attacks are insufficient.

From Barron's

"This did not recommend routine use due to insufficient cost-effectiveness data," a spokesperson said.

From BBC

Judge Edward Burgess KC directed the jury at Bristol Crown Court earlier to return not guilty verdicts due to insufficient evidence in what he called a "difficult, incredibly sad and tragic case".

From BBC