Jean's collapse was completely spontaneous, but it could not have been better planned.

It was something completely spontaneous, something I couldn't help doing.

Some of these actions are passed down over generations, while others are completely spontaneous.

"The body was completely spontaneous, and it remained the final choice."

"If you allow something to be completely spontaneous, you can't provide that kind of assurance."

Charming as the ritual may be, it is not completely spontaneous.

His reaction was completely spontaneous: His open hand caught her across the cheek, hard.

Only every single moment had been orchestrated by him to appear completely spontaneous.'

They also wrote that toys were meant to accustom a child "to completely spontaneous laughter."

Prayer, singing and preaching had to be completely spontaneous.