undefeat
/ʌndɪˈfiːt/Definitions
1. verb
to defeat or conquer successfully; to overcome
“The underdog team was able to undefeat their opponent and win the championship.”
2. noun
the act of defeating or conquering successfully; the state of being undefeated
“The team’s undefeat record was a testament to their skill and determination.”
3. adjective
not defeated or conquered; undefeated
“The undefeated champion was a force to be reckoned with in the sport.”