Synonyms for

Insufficient

Verb / ˌɪnsʌˈfɪʃʌnt / Another word for insufficient — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

not enough; inadequate

Synonyms & similar words

sufficient deficient inadequate deficient lacking scant sparse short meager limited poor scarce skimpy incomplete unsatisfactory faulty imperfect defective inferior substandard unacceptable

Synonyms by register

Formal

inadequate deficient lacking wanting

Informal

not enough short scarce

Literary

meager scant

Antonyms

sufficient adequate enough ample plentiful abundant copious

Common collocations

  • insufficient funds
  • insufficient evidence
  • insufficient data
  • insufficient sleep
  • insufficient resources
  • insufficient time
  • insufficient notice

Word family

noun insufficiency
adverb insufficiently

Usage note

Often used in formal contexts to describe a lack of something necessary or required. Be mindful of its formal tone; more casual alternatives might be 'not enough'.

Example sentences

  1. The amount of food they gave us was insufficient to feed everyone.
  2. The battery's charge was insufficient for the long trip.
  3. His knowledge of the subject was insufficient to pass the test.
  4. The evidence presented was insufficient to convict the defendant.
  5. The funds were insufficient to complete the project.

Quotes

  • The amount of sleep required by the average person is five minutes more. - Wilson Mizener
  • The chief cause of problems is solutions. - Eric Sevareid
  • The cure for boredom is curiosity. There is no cure for curiosity. - Ellen Parr

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