See off day/week etc for more off dayBrE /ˈɒf deɪ/ 🔊NAmE /ˈɔːf deɪ/ 🔊, /ˈɑːf deɪ/ 🔊 noun (informal) a day when you do not do things as well as usual 不顺利的日子;倒霉的一天