Definition of erratically adverb from the Oxford Advanced Learner's Dictionary



BrE BrE//ɪˈrætɪkli//
; NAmE NAmE//ɪˈrætɪkli//
(often disapproving)
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not in a regular way; in a way that does not follow any plan or regular pattern and that you cannot rely on He was obviously upset and was driving erratically. His heart beat erratically.