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unchallengeable
adjective
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How to pronounce unchallengeable:

Definition of unchallengeable:

unchallengeable (adjective):
blameless or faultless
adjective. not open to challenge.
not able to be disputed, questioned, or challenged not challengeable

Synonyms for unchallengeable:

undeniableabsoluteirreproachableaccomplishedindisputableunexceptionableirrefutablepositiveunanswerablesure
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Antonyms for unchallengeable:

undeterminedunsuredisputableindistinctvagueassailableunsatisfactoryunclearchangeablecontentious
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Other 5-syllable words like unchallengeable

Here are some other common words that have 5 syllables, like unchallengeable does.

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