Here are some synonyms for "triumphantly":
* Victoriously
* Successfully
* Joyfully
* Gladly
* With great pride
Here are some examples of how "triumphantly" can be used in a sentence:
* The team emerged from the locker room triumphantly after their victory.
* She announced her graduation triumphantly to her family.
* He raised his hands triumphantly after completing the challenging puzzle.
The word "triumphantly" often implies a sense of celebration, satisfaction, and pride over achieving something difficult or overcoming an obstacle.