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English definition of “erratic”

erratic

adjective
 
 
/ɪˈrætɪk/
something that is erratic is not regular, certain, or organized in its movement or behaviour: The erratic behaviour of the stock market is making investors nervous. Stocks closed up slightly after an erratic day of trading.
erratically adverb
(Definition of erratic from the Cambridge Business English Dictionary © Cambridge University Press)
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