Definition of antsy adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈæntsi//
; NAmE NAmE//ˈæntsi//
(North American English, informal)
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impatient; not able to keep still Word Origin mid 19th cent.: probably from the phrase have ants in one's pants (see ant).
See the Oxford Advanced American Dictionary entry: antsy