dismay - definition and synonyms

verb [transitive] 

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/dɪsˈmeɪ/
present tense
I/you/we/theydismay
he/she/itdismays
present participledismaying
past tensedismayed
past participledismayed
  1. to make someone very worried, disappointed, or sad

    What dismayed me most about their behaviour was their rudeness.