no-brainer
/ˌnəʊ ˈbreɪnə(r)/ (bre, ipa) · /ˌnəʊ ˈbreɪnər/ (ame, ipa) · /ˈnō-ˈbrā-nər/ (ame, mw)
no-brainer — noun
1. a choice, answer, or problem that needs almost no thought because the right opti
a choice, answer, or problem that needs almost no thought because the right option is plainly the best one
For Mauricio, taking the higher-paid job near home was a no-brainer.
be a no-brainer = the choice is obvious
Choosing the indoor venue once the storm warning came in was a no-brainer.
common subject: a decision under clear evidence
Sayaka said voting for the cheaper plan with the same coverage was a total no-brainer.
After the free repair offer arrived, returning the kettle was a no-brainer for Kabir.
Wren told the team that closing the unsafe path for the night was a no-brainer.
- easy decision
neutral and works in formal contexts; lacks the dismissive ring of no-brainer
- obvious choice
emphasises that the right option stands out, without suggesting low effort
- slam dunk
also informal; stresses guaranteed success rather than ease of thought
- tough call
informal; a decision where neither option is clearly better
- dilemma
more formal; suggests two options that are both unwelcome or both attractive
文法句型
be a no-brainer
a total no-brainer
the choice is a no-brainer
用法筆記
Frequently used as a predicate noun after 'be' to label a decision the speaker thinks needs no debate. Informal register — common in workplace, sports, and shopping talk, but avoid in formal writing such as reports or essays.