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abrupt

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abrupt ˈbrʌpt/ adjective
abrupt
ˈbrʌpt/
adjective
Britannica Dictionary definition of ABRUPT
[more abrupt; most abrupt]
: very sudden and not expected
: talking to other people in a very brief and unfriendly way
: rudely brief

— abruptly

adverb

— abruptness

noun
[singular] [noncount]