challenger

mastery
UK /ˈt͡ʃælɪn(d)ʒə/ US /ˈt͡ʃælənd͡ʒəɹ/nounname

card 1 of 10 · synonym

Which word is closest in meaning to 'challenger' in this sentence?

He's reigning champion, and no young challenger is going to take it away from him.