off-peak/ˌ· ˈ·◄/ adj BrE 【英】 a) off-peak hours or periods of time are times when fewer people want to do or use something, for example travel, use their telephones etc 〔时间〕非高峰的,非繁忙的 b) off-peak travel, electricity etc is cheaper because it is done or used at these times 〔交通、用电等〕非高峰时段的: off-peak rail services 非高峰时间的火车服务