spontaneously

We decided spontaneously to board a train for Geneva.

phobias may remit spontaneously without any treatment.

What are the chances of these molecules springing spontaneously into existence?

Opportunities for learning occur spontaneously every day.

The fire started when a pile of oily rags spontaneously combusted.

We found a recessive cataract mutation arose spontaneously in a KUNMING outbred mouse strain.

While methemoglobinemia clears spontaneously over several hours, hemolytic anemia may take several weeks to resolve.

I had never been spontaneously approached by a publisher and such condescension rather turned my head.