appall

/əˈpɔl/ v [T]

Definition

› to cause someone to be extremely upset or shocked: I was appalled by the condition of our facilities, especially the dirty locker room. appalling

/əˈpɔ·lɪŋ/ adj › I was dismayed by the President's appalling economic record.

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

to do something that spoils someone's plans

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