naturally, without premeditation, prompting, or planning:The author recounts how a fully-fledged exchange market economy emerged spontaneously in his POW camp.These answers were given spontaneously to an open-ended question that did not offer response options.
in an impulsive way: It was so cold the other night that I spontaneously booked a trip to Turks and Caicos.
by a natural process or from an internal force or cause:A calf should normally stand spontaneously within 60–90 minutes of its birth.The symptoms resolved spontaneously within 6 months of onset.
- non·spon·ta·ne·ous·ly, adverb
- sem·i·spon·ta·ne·ous·ly, adverb
- sub·spon·ta·ne·ous·ly, adverb
- un·spon·ta·ne·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use spontaneously in a sentence
Clubhouse meanwhile is leading the charge in a wave of social media companies betting on interest in so-called spontaneous chat rooms.Majority of tech employees and potential founders say big tech needs more regulation | Lucinda Shen | September 4, 2020 | Fortune
Shoppers this holiday season are likely to be budget conscious, more selective and less impulsive than last year – especially if most shopping is done online, where browsing and spontaneous buying are typically less likely.A Corona Xmas: Why physical stores will power online shopping this holiday season | Greg Sterling | September 4, 2020 | Search Engine Land
The company wants to foster spontaneous interactions and casual collaboration with a room-based interface.Teemyco creates virtual offices so you can grab a room and talk with colleagues | Romain Dillet | September 4, 2020 | TechCrunch
If true, it would be the first known instance of a spontaneous cure.In a first, a person’s immune system fought HIV — and won | Tina Hesman Saey | August 26, 2020 | Science News
An attractive solution to the measurement problem is provided by spontaneous collapse.Schrödinger’s Cat When Nobody Is Looking - Issue 89: The Dark Side | Daniel Sudarsky | August 26, 2020 | Nautilus
He expected European capitalism to evolve spontaneously into a market socialism of worker-owned cooperatives.
Later, at the Rose.Rabbit.Lie club, Amber spontaneously sing “Proud Mary” with a cabaret singer.Best Career Arc Ever: From Burlesque To Bartending | Anne Berry | September 13, 2014 | THE DAILY BEAST
The mayor was now spontaneously applauded when he walked down the street.
In medicine, Lazarus is the patient who, believed dead, spontaneously starts to circulate blood.Real Life Lazarus: When Patients Rise From the Dead | Sandeep Jauhar | August 21, 2014 | THE DAILY BEAST
In medicine, a ‘Lazarus patient’ is one who spontaneously starts circulating blood.Real Life Lazarus: When Patients Rise From the Dead | Sandeep Jauhar | August 21, 2014 | THE DAILY BEAST
How did the Spanish Government fulfil, on its part, the decree spontaneously issued in 1868?The Philippine Islands | John Foreman
Many of the captaincies had, upon swearing to maintain the constitution, spontaneously adopted that measure.Journal of a Voyage to Brazil | Maria Graham
It followed that everybody was reluctantly compelled to pay the higher price which the American spontaneously elected to give.The Philippine Islands | John Foreman
Artifice is always strictly subordinated, and the poet seems to sing spontaneously.Frdric Mistral | Charles Alfred Downer
No one can tell whence the rhymed jeux d'esprit come; they seem to spring spontaneously from the heart and lips of the people.Spanish Life in Town and Country | L. Higgin and Eugne E. Street