congratulatory
/kənˈɡɹæt͡ʃələˌtɔɹi/ adjective C2- Serving to congratulate.
From the library
The congratulatory letter which Elizabeth received from Lydia on her marriage explained to her that, by his wife at least, if not by himself, such a hope was cherished.
Even the triumphant issue of his labours could not save him from reaction after so terrible an exertion, and at a time when Europe was ringing with his name and when his room was literally ankle-deep with congratulatory telegrams I found him a prey to the blackest depression.
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