it's not rocket science
idiom

Something that is not very difficult to understand or do
  • 1Don't worry about fixing the sink, it's not rocket science.
  • 2You can learn to use the new software quickly, it's not rocket science.
"It's not rocket science" means something is easy to understand or do. It's like saying it's not complicated or hard. Just like how making a sandwich is simple, this phrase is used to show that something is not difficult.
Card
A common mistake to avoid is thinking "it's not rocket science" is only used for simple tasks. It can also be used to emphasize that something is not as complicated as it may seem at first.
at a car repair shop
Fixing the Basics
Linda
I can't believe my car won't start again.
Margaret
Did you check if the battery is connected properly?
Linda
No, I didn't think of that.
Margaret
Give it a try, it's not rocket science.
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Similar to "it's not rocket science":
  • 1simple
  • 2easy
  • 3straightforward