Learn how to say Triumphantly correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word triumphant:
having won a battle or contest; victorious:
two of their triumphant Cup team
a comic fairy tale about innocence triumphant
feeling or expressing jubilation after a victory or achievement:
he couldn’t suppress a triumphant smile
late Middle English (in the sense ‘victorious’): from Old French, or from Latin triumphant- ‘celebrating a triumph’, from the verb triumphare (see triumph)