Subitaneous

Subitaneous

¦səbə¦tānēəs

Adjective

  • Formed or taking place suddenly or unexpectedly; sudden, hasty.
  • Undergoing or ready for immediate development.

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Example Sentences

“A subitaneous downpour sent everyone at the picnic running for shelter.”

“Her subitaneous decision to move abroad surprised the entire family.”

“A subitaneous burst of applause interrupted the speaker’s final sentence.”

Word Origin

Latin, mid-17th century

Why this word?

“Subitaneous” is a formal way of saying “sudden” — both come from the Latin root “subitus,” meaning “sudden, unexpected.” In scientific contexts, it carries the connotation of being ready for immediate development. An experiment might have a subitaneous outcome, meaning further experiments can move forward immediately.

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shə-ˈgrin