Origin of spontaneous
Examples from the Web for spontaneous
The premise of the sketch was that sex was too spontaneous to be regulated, and the quiz show played that idea to the hilt.
Trying to be ordinary, plain-spoken, and spontaneous made it worse.
Odds against chance in a review of spontaneous telepathy studies have been calculated, Radin says, at “22 billion to 1.”Knocking on Heaven's Door: True Stories of Unexplained, Uncanny Experiences at the Hour of Death|Patricia Pearson|August 11, 2014|DAILY BEAST
Israelis have also waged a psy-war on Hamas, albeit more informal and spontaneous.Israel, Hamas, WhatsApp and Hacked Phones in the Gaza Psy-War|Itay Hod|July 26, 2014|DAILY BEAST
New York in the 1920s was iridescent, and its boom was spontaneous.
The words were so intense, so spontaneous and unexpected, that Loder took a step back.The Masquerader|Katherine Cecil Thurston
Orsino had listened raptly to the words and joined in a burst of spontaneous applause that swept around the table.The Syndic|C.M. Kornbluth
She was a little bit taken aback by his answer; it was so frank and spontaneous that it almost disarmed her.A Gamble with Life|Silas K. Hocking
Her feeling now was that she had made advances, spontaneous and friendly, and been smartly rebuffed.V. V.'s Eyes|Henry Sydnor Harrison
For aught the officer had to show for it, the "wild-cat" was a spontaneous production of the soil.The Ordeal|Charles Egbert Craddock
British Dictionary definitions for spontaneous
Word Origin for spontaneous
Word Origin and History for spontaneous
1650s, from Late Latin spontaneus "willing, of one's free will," from Latin (sua) sponte "of one's own accord, willingly;" of unknown origin. Related: Spontaneously. Earliest use is of persons and characters. Spontaneous combustion first attested 1795. Spontaneous generation (the phrase, not the event) attested from 1650s.