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Synonyms

sudden

American  
[suhd-n] / ˈsʌd n /

adjective

  1. happening, coming, made, or done quickly, without warning, or unexpectedly.

    a sudden attack.

    Antonyms:
    gradual
  2. occurring without transition from the previous form, state, etc.; abrupt.

    a sudden turn.

    Antonyms:
    gradual
  3. impetuous; rash.

  4. Archaic. quickly made or provided.

  5. Obsolete. unpremeditated.


adverb

  1. Literary. without warning; suddenly.

noun

  1. Obsolete. an unexpected occasion or occurrence.

idioms

  1. all of a sudden, without warning; unexpectedly; suddenly. Also on a sudden

sudden British  
/ ˈsʌdən /

adjective

  1. occurring or performed quickly and without warning

  2. marked by haste; abrupt

  3. rare rash; precipitate

"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

noun

  1. archaic an abrupt occurrence or the occasion of such an occurrence (in the phrase on a sudden )

  2. without warning; unexpectedly

"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

adverb

  1. poetic without warning; suddenly

"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
sudden More Idioms  

Related Words

Sudden, unexpected, abrupt describe acts, events, or conditions for which there has been no preparation or gradual approach. Sudden refers to the quickness of an occurrence, although the event may have been expected: a sudden change in the weather. Unexpected emphasizes the lack of preparedness for what occurs or appears: an unexpected crisis. Abrupt characterizes something involving a swift adjustment; the effect is often unpleasant, unfavorable, or the cause of dismay: He had an abrupt change in manner. The road came to an abrupt end.

Other Word Forms

  • suddenly adverb
  • suddenness noun

Etymology

Origin of sudden

First recorded in 1250–1300; Middle English adjective and adverb sodain, soden, sodan(e), from Middle French soudain, from Vulgar Latin subitānus, from Latin subitāneus “going or coming stealthily,” equivalent to subitus “sudden, arising without warning” + -āneus composite adjective suffix, equivalent to -ānus + -eus; subito, -an, -eous

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.

All of a sudden, Jason found himself in the middle of a pop-cultural tornado.

From The Wall Street Journal

Several economy passengers asked for ice packs to ease their sudden headaches, then a handful started to vomit.

From The Wall Street Journal

Their goal is to detect warning signs early, before a sudden landslide could trigger a destructive tsunami.

From Science Daily

Just a few days before her sudden death in late May, Zoë and her husband Andrew had a conversation that he returns to time and again.

From BBC

However, Togo has a history of sudden eruptions of protest or unrest.

From BBC