upset

/ˌʌpˈset/ v [T] (present participle upsetting, past tense and past participle upset) (WORRY)

Definition

› to make someone worried, unhappy, or angry: The governor’s veto upset a lot of people.

(Definition of upset v (WORRY) from the Cambridge Academic Content Dictionary © Cambridge University Press)

If a reason, argument or explanation holds water, it is true

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