Definitions

1. adjective

Overly self-confident or arrogant in a way that is likely to lead to a downfall.

“The trappant politician’s boasts of a quick victory were seen as a sign of his impending loss.”

2. noun

A person who is overconfident or arrogant, often to the point of being ridiculous or annoying.

“The trappant friend kept boasting about his fictional accomplishments, until everyone got tired of listening to him.”