It was quite a wilderness, and there were old melon-frames and cucumber-frames in it, which seemed in their decline to have produced a spontaneous growth of weak attempts at pieces of old hats and boots, with now and then a weedy offshoot into the likeness of a battered saucepan.
But then, as Herbert changed the bandages, more by the light of the fire than by the outer light, he went back to it spontaneously.
There are no more uses of "spontaneous" in the book.
Show samples from other sources
The group broke into spontaneous laughter.
He bubbled with enthusiasms, and his faintest smile or lightest laugh seemed spontaneous and genuine.