(idiomatic) In a manner characteristic of a practical person; sensibly.
We think we can trust John with this new position as he has his feet on the ground.
Wiktionary
Feet-on-the-ground Sentence Examples
Just remember to keep your feet on the ground.
She swung her legs around and firmly planted her feet on the ground before accepting the hand he offered.
He despised her video game playing and art, instead saying she needed a man capable of keeping her feet on the ground long enough for her to focus on doing something real with her life.
A steadying influence who keep the rest of the country 's feet on the ground.
