← BackshareGuessno brainer/ˈnoʊ ˌbreɪnər/nounA decision or choice that is very easy to make because it is so obvious.For a math whiz like her, the test was a no-brainer.Accepting the job offer with a higher salary was a no-brainer.Choosing the cheaper option was a no-brainer.SynonymscinchsnapAntonymsdilemma