adjective
- happening naturally without being planned or caused by someone
- done without thinking or planning; acting on impulse
- occurring without external cause or influence
Usage: scientific
Examples
- The crowd broke into spontaneous applause.
- We decided to take a spontaneous trip to the beach.
- Her spontaneous laughter filled the room.
- The fire appeared to be spontaneous combustion.
- He gave a spontaneous speech without any notes.
- The children’s spontaneous play was delightful to watch.
- She made a spontaneous decision to change careers.