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sudden

/ˈsʌdən/
noun
  1. An unexpected occurrence; a surprise.

adjective
  1. Happening quickly and with little or no warning.

    "The sudden drop in temperature left everyone cold and confused."

  2. Hastily prepared or employed; quick; rapid.

  3. Hasty; violent; rash; precipitate.

Synonymsabrupt, precipitous, subitaneous, hotheaded, impetuous, impulsive
Antonymsunsudden, gradual
adverb
  1. Suddenly.

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sudden — meaning, definition & examples | WordNote | WordNote