spontaneous

[ spon-tey-nee-uhs ]
/ spɒnˈteɪ ni əs /

adjective

coming or resulting from a natural impulse or tendency; without effort or premeditation; natural and unconstrained; unplanned: a spontaneous burst of applause.
(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.

Origin of spontaneous

1650–60; < Late Latin spontāneus, equivalent to Latin spont(e) willingly + -āneus ( -ān(us) -an + -eus -eous)

synonym study for spontaneous

1. See automatic, voluntary.

OTHER WORDS FROM spontaneous

Example sentences from the Web for spontaneously

British Dictionary definitions for spontaneously

spontaneous
/ (spɒnˈteɪnɪəs) /

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

Derived forms of spontaneous

spontaneously, adverb spontaneousness, noun

Word Origin for spontaneous

C17: from Late Latin spontāneus, from Latin sponte voluntarily