antsy
/ˈantsi
/adjective (antsier, antsiest) North American informal
Agitated, impatient, or restless: Dick got antsy the day he put to sea...
- I lay restless and antsy, tossing and turning every couple of minutes.
- She sensed that he was growing impatient and somewhat antsy.
- And losing makes fans unhappy, coaches uneasy and owners antsy, ready to press the fire button.
Origin
Mid 19th century: probably from the phrase have ants in one's pants (see ant).