say it: uhn-CHAL-injd
unchallenged is an adjective meaning "generally agreed upon; not subject to dispute". It carries one recorded sense.
generally agreed upon; not subject to dispute
“the undisputed fact”
Definitions, synonyms and semantic relations for unchallenged come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.