counterexample
🇺🇸
/ˈkaʊntərɪɡzæmpl/
🇬🇧
/ˈkaʊntərɪɡzɑːmpl/
A situation or thing that shows a statement or idea is not always true.
The broken clock is a counterexample to the belief that all clocks are reliable.
壞掉的鐘錶是一個反例,證明並非所有鐘錶都可靠。