|ən+ adjective
Etymology: un- (I) + challenged, past participle of challenge
: not challenged : undisputed
emerged the unchallenged political head — A.L.Funk
|ən+ adjective
Etymology: un- (I) + challenged, past participle of challenge
: not challenged : undisputed
emerged the unchallenged political head — A.L.Funk
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012