ˈrocket ˌscience BrE AmE noun
something is not rocket science informal used to say that something is not difficult to do or understand:
Designing a website may be a lot of work but it’s not rocket science.
ˈrocket ˌscience BrE AmE noun
something is not rocket science informal used to say that something is not difficult to do or understand:
Designing a website may be a lot of work but it’s not rocket science.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012