Also found in: Thesaurus, Medical, Encyclopedia.


1. Happening or arising without apparent external cause; self-generated: a microorganism capable of spontaneous movement.
2. Arising from a natural inclination or impulse and not from forethought or prompting: spontaneous laughter; a spontaneous protest.
3. Unconstrained and unstudied in manner or behavior: a spontaneous personality.
4. Growing without cultivation or human labor: spontaneous vegetation.

[From Late Latin spontāneus, of one's own accord, from Latin sponte; see (s)pen- in Indo-European roots.]

spon·ta′ne·ous·ly adv.
spon·ta′ne·ous·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spontaneousness - the quality of being spontaneous and coming from natural feelings without constraint; "the spontaneity of his laughter"
naturalness - the quality of being natural or based on natural principles; "he accepted the naturalness of death"; "the spontaneous naturalness of his manner"
تِلقائِيَّه، عَفْوِيَّه
kendiliğinden olma


(spənˈteiniəs) adjective
1. said, done etc of one's own free will without pressure from others. His offer was quite spontaneous.
2. natural; not forced. spontaneous behaviour.
sponˈtaneously adverb
sponˈtaneousness noun
spontaneity (spontəˈneiəti) , (spontəˈniːəti) noun
Mentioned in ?
References in periodicals archive ?
supported and enacted ideologies of leaderlessness and spontaneousness.
Their creativity is a celebration of the spirit and the soul of our region, of Mediterranean spontaneousness and vitality, and our unique historical and cultural contribution to the heritage of Europe and the world.
The visual spontaneousness and transparency of the watercolor medium plays an important role to the aesthetics of each painting.