adjective. never defeated; always victorious

adjective. victorious

"All three look testing for Federer, who has played just six Tour matches since losing to Del Potro in New York, and with 1,500 points up for grabs for any player who wins the title undefeated he is taking nothing for granted."

winless  

triumphant  unbeaten  unbowed  unconquered  unvanquished  

accreted  cheated  competed  completed  defeated  

26-year  featherweight  five-time  goalless  janjaweed