Definitions

1. adjective

having or showing a tendency to jump or jumpiness; nervous or restless

“The jumpy child couldn’t sit still during the movie.”

2. noun

a feeling of nervousness or restlessness, especially one that causes someone to be prone to jumping or sudden movements

“The jumpy feeling in her stomach made her stomach turn.”

3. adverb

in a jumping or nervous manner

“The kids ran jumpy through the playground.”