Fanny soon learnt how unnecessary had been her fears of a removal; and her spontaneous, untaught felicity on the discovery, conveyed some consolation to Edmund for his disappointment in what he had expected to be so essentially serviceable to her.
Lady Bertram agreed to it all with a calm "Yes"; and at the end of a quarter of an hour’s silent consideration spontaneously observed, "Sir Thomas, I have been thinking—and I am very glad we took Fanny as we did, for now the others are away we feel the good of it."
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.