triumphant

1 having attained a desired end or state of good fortune the triumphant bidder on the house Synonyms flourishing, going, palmy, prosperous, thriving, successfulRelated Words coming, promising; booming, growing, roaring, robust; boffo, gangbusters (also gangbuster), runaway, sockoNear Antonyms futureless, hopeless, inauspicious, no-good, unpromising; collapsing, failing, flopping, flunking, folding, washing-out; declining, slipping, slumping, waning; bankrupt, kaput (also kaputt), kerflooey; destroyed, ruined, wreckedAntonyms failed, unsuccessful

2 having or expressing feelings of joy or triumph he was positively triumphant when the school troublemaker finally got expelled Synonyms cock-a-hoop, crank [chiefly dialect], crowing, exulting, glorying, jubilant, prideful, proud, rejoicing, exultantRelated Words ecstatic, elated, euphoric; arrogant, boastful, cocky; conquering, victorious, winningNear Antonyms crestfallen, defeated, dejected, depressed, disconsolate, dispirited, downcast