Level 5 · word 9,515 of 20,000

impromptu

/ˌɪmˈprɑːmptu/ American
  • adj. 即席的, 即兴的
  • n. 即兴曲, 即兴表演
Definition
  • adj. done without planning or preparation
  • n. a piece of music or a performance made up without preparation
Example
We had an impromptu picnic in the park after class ended.
下课后,我们在公园里即兴办了一场野餐。