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It's not rocket science

Phrase of the day

Discover a new phrase each day to use in your English! These are special phrases and sayings that English speakers use all the time, but you don't often see these phrases in English course books or other study material. Visit daily to learn some popular English phrases on a regular basis.

3 June 2026

It's not rocket science

We use this expression when another person says that something is difficult and we disagree. We think it is easy and we are criticising their attitude.

Written: Yes

Spoken: Yes

Formal: No

Informal: Yes

Example 1

How can I turn down the air conditioner? It's too strong.

Come on! It's not rocket science. You just press the temperature up button on the remote control

Example 2

How can I find the address of the hotel?

It's not rocket science. Just look on the internet.

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