unimpeachable

American  

[uhn-im-pee-chuh-buhl] / ˌʌn ɪmˈpi tʃə bəl /

adjective

1. above suspicion; impossible to discredit; impeccable.

   unimpeachable motives.

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unimpeachable British  

/ ˌʌnɪmˈpiːtʃəbəl /

adjective

1. unquestionable as to honesty, truth, etc

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Other Word Forms

• unimpeachability noun
• unimpeachableness noun
• unimpeachably adverb

Etymology

Origin of unimpeachable

First recorded in 1775–85; un- ¹ + impeachable

Example Sentences

"The Adelaide writers' festival has supported hearing Palestinian voices, its record on this is unimpeachable," Carr said.

From BBC

But even if you haven’t surrendered to the catchiness of “Golden,” the plot’s infectious reflections on acceptance and self-love are unimpeachable for fans of any age.

From Salon

Jack balks at the assignment, saying the judge is unimpeachable.

From The Wall Street Journal

This is an iconic work of narrative nonfiction that pairs unimpeachable reporting with advocacy and belief.

From Los Angeles Times

We can quibble over the precise numbers, perhaps, but the thrust of Beattie's argument is unimpeachable.

From BBC