superconfident
/ˌsupərˈkɑnfədənt/
adjective
- Extremely or excessively confident; having very strong belief in one's own abilities, often without good reason.
- She was superconfident about passing the exam, but she hadn't studied enough.
- His superconfident smile made everyone think he already knew the answer.
- The team's superconfident attitude annoyed their opponents before the game.
Synonyms