Definition of spontaneous Spontaneous

/spɑntejˈniʌs/ - [spanteyneeus] - spon•ta•ne•ous

We found 15 definitions of spontaneous from 4 different sources.

What does spontaneous mean?

Adjective
spontaneous - happening or arising without apparent external cause; "spontaneous laughter"; "spontaneous combustion"; "a spontaneous abortion"
		self-generated
		induced brought about or caused; not spontaneous; "a case of steroid-induced weakness"
		unprompted, impulsive without forethought; "letting him borrow her car was an impulsive act that she immediately regretted"
		intuitive obtained through intuition rather than from reasoning or observation
spontaneous - said or done without having been planned or written in advance; "he made a few ad-lib remarks"
		ad-lib, unwritten
		unscripted not furnished with or using a script; "unrehearsed and unscript spot interviews"; "unscripted talk shows"

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spontaneous (Adjective)
Self generated; happening without any apparent external cause.
spontaneous (Adjective)
Done by one's own free choice, or without planning.
spontaneous (Adjective)
Proceeding from natural feeling or native tendency without external constraint.
spontaneous (Adjective)
Arising from a momentary impulse.
spontaneous (Adjective)
Controlled and directed internally : self-active : spontaneous movement characteristic of living things.
spontaneous (Adjective)
Produced without being planted or without human manual labor : indigenous.
spontaneous (Adjective)
Not apparently contrived or manipulated : natural.
spontaneous (Adjective)
Random.
spontaneous (Adjective)
Sudden, without warning.

spontaneous (a.)
Proceding from natural feeling, temperament, or disposition, or from a native internal proneness, readiness, or tendency, without constraint; as, a spontaneous gift or proportion.
spontaneous (a.)
Proceeding from, or acting by, internal impulse, energy, or natural law, without external force; as, spontaneous motion; spontaneous growth.
spontaneous (a.)
Produced without being planted, or without human labor; as, a spontaneous growth of wood.

spontaneous
spon-tā′nē-us, adj. of one's free-will: involuntary: acting by its own impulse or natural law: produced of itself or without interference.—ns. Spontanē′ity, Spontā′neousness, the state or quality of being spontaneous.—adv. Spontā′neously.—Spontaneous combustion, a phenomenon that occasionally manifests itself in mineral and organic substances; Spontaneous generation, a term applied to the real or imaginary development of lowly organisms from non-living matter. [L. spontaneus—sponte, of one's own accord.]