Norwegian-English translations for tilfeldig

random
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The party was boring. It was full of randomsThe flip of a fair coin is purely random.The newspaper conducted a random sample of five hundred American teenagers.
arbitrary
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Benjamin Franklins designation of "positive" and "negative" to different charges was arbitraryThe decision to use 18 years as the legal age of adulthood was arbitrary, as both age 17 and 19 were reasonable alternativesThe equation is true for an arbitrary value of x

accidental
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haphazard
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Do not make such haphazard changes to the settings; instead, adjust the knobs carefully, a bit at a time
aleatory
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by chanceI stumbled across the exit by chance.Are you by chance looking for the exit?
casualThey only had casual meetingsThe purchase of donuts was just a casual expenseHe was just a casual worker
haphazardly
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occasional
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He was mostly solitary, but enjoyed the occasional visitorHe took an occasional glass of wineElgars music was not created to be occasional music for high-school graduations