spontaneous
adjective uk/spɒnˈteɪ.ni.əs/ us/spɑːnˈteɪ.ni.əs/
自发的;非筹划安排的;非勉强的
happening or done in a natural, often sudden way, without any planning or without being forced
His jokes seemed spontaneous, but were in fact carefully prepared beforehand. 他讲的笑话似乎是即兴的，但实际上是事先精心准备好的。
approving She's such a spontaneous, lively woman. 她是个为人率直、充满活力的女子。
- More examples
- I am certain both these statements were spontaneous and genuine.
- The audience broke into spontaneous applause.
- What happened was not a spontaneous outburst of violence.
- This was a spontaneous outpouring of emotion.
- We had no plans to do it - it was a spontaneous thing.