If someone is sprier, they are more active and lively, especially when they are older.
Being sprier is a good thing. It means someone is healthy and full of energy, even when they are old.
Examples:
My grandma is sprier than your grandpa.
The cat is sprier than the dog.
She is sprier than her sister.
The rabbit is sprier than the turtle.
The old man is sprier than the young man!
The sprier monkey can jump higher than the other monkeys.