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Definition of "sudden" [sud•den]

  • Happening without warning; unforeseen: a sudden storm. (adjective)
  • Characterized by hastiness; abrupt or rash: a sudden decision. See Synonyms at impetuous. (adjective)
  • Characterized by rapidity; quick and swift. (adjective)
  • All of a sudden Very quickly and unexpectedly; suddenly. (idiom)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "sudden" in a sentence
  • "But the term sudden infant death syndrome, or SIDS, wasn't coined until the 1960s when it was declared a medical disorder."
  • "The term sudden infant death syndrome (Sids) was introduced in 1969 as a recognised category of natural death that carried no implication of blame for bereaved parents."
  • "The term sudden infant death syndrome (SIDS) was introduced in 1969 as a recognised category of natural death that carried no implication of blame for bereaved parents."