💭 Meaning
A “no-brainer” is a decision, choice, or task so obvious and easy that it takes almost no thought. It’s often used for an offer or option that’s clearly worth saying yes to.
✍️ Examples
With free shipping and a 50 percent discount, buying the winter coat was a no-brainer.
Henry’s neighbor said taking the job with a shorter commute and a bigger paycheck was a total no-brainer.
For the hungry hikers, stopping at the pie stand at the trailhead was a no-brainer.
📜 Origin
“No-brainer” is a compound of “no” and “brain,” literally meaning something that requires no brainpower. It shows up in American English around the middle of the 20th century. Early uses were sometimes less flattering and could describe something mindless or even a person seen as unintelligent. By the 1970s and 80s, the meaning had shifted to the friendlier sense we use today, an easy, obvious decision, and the term spread through sports commentary, business talk, and advertising. Today it’s a staple of casual speech, though the exact first use is hard to pin down.