How to Use "belie" with Example Sentences

1. God , I can 't belie v ei just said that .
2. His cheerful appearance belie his feelings .
3. The scientists speculate that one 's tendency to grin-an example of what psychologists call " thin slices " of behavior that can belie personal traits-reflects his or her underlying emotional disposition .
4. Either way , the motifs look tacky and belie the tastefulness within .
5. It was once a common belie that the earth was flat .