Spontaneous

Definition of Spontaneous

Spon`ta´ne`ous   Pronunciation: spǒn`tā´nė`ŭs
a.1.Proceeding from natural feeling, temperament, or disposition, or from a native internal proneness, readiness, or tendency, without constraint; as, a spontaneous gift or proposition.
2.Proceeding from, or acting by, internal impulse, energy, or natural law, without external force; as, spontaneous motion; spontaneous growth.
3.Produced without being planted, or without human labor; as, a spontaneous growth of wood.
Spontaneous combustion
combustion produced in a substance by the evolution of heat through the chemical action of its own elements; as, the spontaneous combustion of waste matter saturated with oil.
Spontaneous generation
(Biol.) See under Generation.

Related Words

ad lib, arbitrary, automated, automatous, autonomous, bat, baton, billy, billy club, bludgeon, casual, club, cybernated, discretional, discretionary, elective, extempore, free, free will, gratuitous, gut, ill-advised, ill-considered, ill-devised, immediate, impetuous, impromptu, improvised, inadvertent, indeliberate, independent, inherent, innate, instinctual, involuntary, libidinal, mace, mechanical, nightstick, nonmandatory, off the cuff, offered, offhand, optional, proffered, reflex, reflexive, self-acting, self-active, self-adjusting, self-closing, self-controlled, self-cooking, self-determined, self-determining, self-directed, self-directing, self-dumping, self-governed, self-governing, self-lighting, self-operative, self-regulative, self-starting, self-winding, self-working, semiautomatic, simple, snap, spontoon, spur-of-the-moment, subliminal, truncheon, unadvised, unannounced, unasked, unbesought, unbidden, uncalculated, uncalled-for, uncoerced, uncompelled, unconscious, unconsidered, unconstrained, undeliberate, undeliberated, undesigned, unforced, unguarded, uninfluenced, unintended, unintentional, uninvited, unlearned, unmeditated, unplanned, unpremeditated, unprepared, unpressured, unprompted, unrehearsed, unrequested, unrequired, unsolicited, unsophisticated, unsought, unstudied, unthinking, unwilled, unwitting, volunteer, willful
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Spongiole
Spongiolite
Spongiopilin
Spongiose
Spongiozoa
Spongoblast
Spongoid
Spongy
Spongy lead
Spongy platinum
Sponk
Sponsal
Sponsible
Sponsion
Sponsional
Sponson
Sponsor
Sponsorial
Sponsorship
Spontaneity
-Spontaneous-
Spontaneous combustion
Spontaneous generation
Spontoon
Spook
Spool
Spool stand
Spooler
Spoom
Spoon
Spoon bait
Spoon bit
Spoon net
Spoon oar
Spoon-billed
Spoon-meat
Spoonbill
Spoonbilled widgeon
Spoondrift
Spooney
Spoonflower
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