UNCHALLENGEABLE

unchallengeable

(adjective) not open to challenge; “unchallengeable facts”; “a position of unchallengeable supremacy”

Source: WordNet® 3.1

Etymology

Adjective

unchallengeable (comparative more unchallengeable, superlative most unchallengeable)

Not open to challenge; indisputable

Synonyms

• inarguable

• indisputable

• unarguable

Source: Wiktionary

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