1. An unplanned, unrehearsed remark or observation made without prior thought or preparation
During the meeting, his spontaneous comment broke the tension in the room.
Durante a reunião, seu comentário espontâneo quebrou a tensão na sala.
2. An off-the-cuff remark that is genuine and unrehearsed
The actress made a spontaneous comment during the interview that went viral.
A atriz fez um comentário espontâneo durante a entrevista que viralizou.