1. superlative form of toothy; having the most teeth or the most prominent teeth
Usage: superlative form
2. having the broadest or most enthusiastic smile
Usage: informal

Examples

• The shark was the toothiest predator in the aquarium.
• She gave her toothiest grin when she won the award.
• Among all the jack-o’-lanterns, his was the toothiest.
• The toothiest member of the family always smiled in photos.
• The crocodile’s toothiest expression made the tourists nervous.
• He flashed his toothiest smile at the camera.