Which definition best describes spontaneous?

• A. Not moving, acting, or progressing
• B. An area of knowledge
• C. Happening or done in a natural, often sudden way, without being planned or thought about
• D. Growing without cultivation or human labor

Answer: (C)

Spontaneous means happening or done in a natural, often sudden way, without planning or thought. This captures the idea of actions or events that arise on the spur of the moment, without premeditation. For example, laughing spontaneously or deciding to take a trip on impulse. The other descriptions describe stillness, a subject area, or natural growth without human input, none of which convey the unplanned, in-the-moment quality that spontaneity carries.