Definition of unimpeachable in English:

unimpeachable

Line breaks: un|im¦peach|able
Pronunciation: /ʌnɪmˈpiːtʃəb(ə)l
 
/

adjective

Not able to be doubted, questioned, or criticized; entirely trustworthy: an unimpeachable witness
More example sentences
  • They are unquestionable, unassailable, unimpeachable.
  • Presumably, as the man in charge of policing local councillors' behaviour, he is a man of unimpeachable moral standards himself?
  • He is almost unimpeachable because to criticise him is seen as poor form.
Synonyms
trustworthy, reliable, dependable, unquestionable, unassailable, unchallengeable, above suspicion, beyond suspicion;
perfect, faultless, blameless, impeccable, irreproachable, unblemished

Derivatives

unimpeachably

adverb
More example sentences
  • The room wasn't really dirty in any absolute sense, but as hotel rooms are intimately occupied by a succession of strangers, they must be unimpeachably clean: and this room wasn't.
  • Of all the images in the roll, this is the most unimpeachably frank, intensely emotional and at the same time fragmentary, reproducing the texture and flavour of the moment without explaining its meaning.
  • The Hague system, rooted on unimpeachably pure democratic principles, has fallen prey to the unbridgeable gap between the world of MPs and the world of the party members.

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