Having the jitters is a phrase used to describe a feeling of nervousness or anxiety. It can be caused by a variety of things, such as an upcoming event or a stressful situation. The two crossword solutions for this phrase are EDGY and ANTSY. EDGY is an adjective that means tense or nervous, while ANTSY is an adjective that means restless or uneasy. Both words accurately describe the feeling of having the jitters.