My grandmother's eyes would crinkle with joy when she smiled.
The old book's pages began to crinkle from years of use.
The doctor used eye drops to dilate my pupils during the eye exam.
In dim light, the pupils naturally dilate to let in more light.
Due to my family's history, I am predisposed to certain health conditions.
Some people are predisposed to enjoy outdoor activities from a young age.
She is apt to forget things if she doesn't write them down.
Students who study regularly are apt to perform well on exams.
The aversive reaction to the loud noise made the child cover their ears.
Due to his aversive attitude, he often avoids confrontations and prefers solitude.
