spontaneous : अर्थ और परिभाषाएं

Happening or arising without apparent external cause; self-generated: a microorganism capable of spontaneous movement.

Arising from a natural inclination or impulse and not from forethought or prompting: spontaneous laughter; a spontaneous protest.

Unconstrained and unstudied in manner or behavior: a spontaneous personality.

Growing without cultivation or human labor: spontaneous vegetation.