Definitions

1. verb

to rival or surpass someone in a competition or contest, especially in a boastful or arrogant manner

“The young athlete outvaunted his opponent in the 100-meter dash, finishing a full second ahead.”

2. noun

a rival or competitor who surpasses or outdoes someone in a competition or contest

“The outvaunt in the business world managed to secure a major contract, leaving their rival in the dust.”