to deprive of courage, resolution, and initiative through the pressure of sudden fear or anxiety or great perplexity — dis•may•ing•ly \-iŋ-lē\ adverb synonymy DISMAY, APPALL, HORRIFY, DAUNT mean to unnerve or deter by arousing fear, apprehension, or aversion. DISMAY implies that one is disconcerted and at a loss as to how to deal with something 〈dismayed at the size of the job〉. APPALL implies that one is faced with that which perturbs, confounds, or shocks 〈I am appalled by your behavior〉. HORRIFY