Is there a word for "without any reason" but a more formal one

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Music by Eric Matyas
https://www.soundimage.org
Track title: Puzzling Curiosities

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Chapters
00:00 Is There A Word For &Quot;Without Any Reason&Quot; But A More Formal One
00:24 Answer 1 Score 43
00:39 Answer 2 Score 17
01:07 Accepted Answer Score 14
01:45 Answer 4 Score 12
02:15 Answer 5 Score 3
02:25 Thank you

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Full question
https://english.stackexchange.com/questi...

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Tags
#singlewordrequests #formality #register

#avk47