a no-brainer

/ə ˌnəʊ ˈbreɪnə/INFORMAL · C1

Meaning

a decision or choice that is very easy

Examples

  1. 1The job pays more and it's closer to home, so accepting it was a no-brainer.
  2. 2Free breakfast with the room? That's a no-brainer.
  3. 3With a train that's both cheaper and faster, choosing it over the car is a no-brainer.
  4. 4For most working parents, a free after-school club is a no-brainer.
  5. 5Is switching to the cheaper phone deal a no-brainer, or is there a catch?

Grammar

A countable noun, usually with a after be or seem. Keep the hyphen in no-brainer.

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