spontaneous
Americanadjective
-
coming or resulting from a natural impulse or tendency; without effort or premeditation; natural and unconstrained; unplanned.
a spontaneous burst of applause.
- Synonyms:
- free, unpremeditated
- Antonyms:
- premeditated
-
(of a person) given to acting upon sudden impulses.
-
(of natural phenomena) arising from internal forces or causes; independent of external agencies; self-acting.
-
growing naturally or without cultivation, as plants and fruits; indigenous.
-
produced by natural process.
adjective
-
occurring, produced, or performed through natural processes without external influence
spontaneous movement
-
arising from an unforced personal impulse; voluntary; unpremeditated
a spontaneous comment
-
(of plants) growing naturally; indigenous
Usage
What does spontaneous mean? Spontaneous means natural and unplanned. When you describe an action or event as spontaneous, it means it happened naturally, without having been planned, as in The meeting turned into a spontaneous dance party.When something that someone does is described as spontaneous, it means it was done out of a natural impulse, without having been thought about beforehandWhen spontaneous is used to describe a person, it means they have a tendency to or are known for doing things impulsively and without planning. This is usually used in a positive way to portray them as a fun person who is adventurous and willing to do things on the spur of the moment. Telling someone to be more spontaneous means you want them to be more flexible and willing to do more things on a whim instead of needings for things to be completely structured or scheduled.The state or quality of being spontaneous is spontaneity.In a scientific context, spontaneous is used to describe effects that happen independently, without being acted on by outside forces. The most well-known example of its use in this sense is in the term spontaneous combustion, in which something catches on fire due to an internal chemical reaction (as opposed to external ignition).Example: Julian’s friends knew him as a spontaneous guy who was always up for going on random adventures.
Related Words
Other Word Forms
- nonspontaneous adjective
- nonspontaneousness noun
- semispontaneous adjective
- semispontaneousness noun
- spontaneously adverb
- spontaneousness noun
- subspontaneous adjective
- subspontaneousness noun
- unspontaneous adjective
- unspontaneousness noun
Etymology
Origin of spontaneous
First recorded in 1650–60; from Late Latin spontāneus, equivalent to Latin spont(e) “willingly” + -āneus ( -ān(us) -an + -eus -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.
Rather than calculating energy in the traditional sense, the method evaluates how unlikely it would be for a particular reaction network to operate in exactly that way if chemistry were driven only by spontaneous processes.
From Science Daily
The spontaneous protests, driven by dissatisfaction at Iran's economic stagnation and galloping hyperinflation, began on Sunday in Tehran's largest mobile phone market where shopkeepers shuttered their businesses.
From Barron's
The King, speaking in the abbey's medieval Lady Chapel, also hailed the "spontaneous bravery" of those who helped in emergencies, such as the Bondi Beach attack in Australia.
From BBC
"People's spontaneous reaction" and "the exchange of information" have created the best in the world, was his takeaway.
From BBC
The song can’t be made by any one member — it can only come from the spontaneous transcendence of the group.
From Los Angeles Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
