なしに(は)
nashi ni (wa)
without; unless
[Without / Unless]
Connection: Noun + なしに(は) / Verb (dictionary form) + ことなしに(は)
Usage: Means "without doing X" or "unless X is done." Indicates that the absence of something makes the following action difficult or impossible. More formal than ないで or なくて.
Variations:
Examples:
予約なしには入れないレストランだ。(It's a restaurant you can't enter without a reservation.)
努力なしに成功することはない。(There is no success without effort.)
彼の協力なしには、このプロジェクト���完成しなかっただろう。(Without his cooperation, this project probably wouldn't have been completed.)