witheringly

/ˈwɪðərɪŋli/
adverb
  1. In a way that expresses scorn, contempt, or disapproval, making someone feel crushed or humiliated.
    • She looked witheringly at the student who had interrupted her.
    • The teacher witheringly dismissed the excuse as nonsense.
    • He spoke witheringly of the proposal, calling it a waste of time.
Antonyms