jittery
adjectiveUK /ˈdʒɪt.ər.i/
US /ˈdʒɪt̬.ɚ.i/
Feeling nervous and shaky, like you can't sit still.
She felt jittery before her first day at a new school.
OTHER MEANINGS
2. Shaking slightly because of cold or fear.
His hands were jittery after standing in the snow.
3. Moving with small, quick jerks.
The video looked jittery because the camera was moving.
4. Full of nervous energy, often from too much coffee.
After three cups of coffee, he was too jittery to sit down.