Définitions
1.AdjectiveSelf-directed; happening or acting without external cause or instigation; proceeding from natural feeling, temperament, or momentary impulse."He made a spontaneous offer of help."
2.AdjectiveDone by one's own free choice, or without planning.
3.AdjectiveControlled and directed internally; self-active; spontaneous movement characteristic of living things.
4.AdjectiveProduced without being planted or without human cultivation or labor.
5.AdjectiveSudden, without warning.
6.AdjectiveSaid or done without prior planning or prior writing."He made a spontaneous remarks in the court."