自发的

• unmeditated
• unprompted
• spontaneous
• voluntary
• unpromoted
• idiogenetic
• initiative
• self-organized
• idiopathic
• autogenic
• autonomous
• idiopathetic
• astonomous
• autogenous
• autonomic

例句

1. 事件剧一种即兴的、通常是自发的、尤指由观众参与的场景或演出
   An improvised, often spontaneous spectacle or performance, especially one involving audience participation.