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Unimpeachable

adj. thoughtful, capable formal

What it means

Meaning 1

Beyond credible doubt or criticism because integrity is exceptionally strong.

Reach for it when Praising a person's conduct, character, or reputation after careful scrutiny.

Her unimpeachable independence reassured both sides of the land dispute.

Meaning 2

Too reliable or authoritative to be called into question.

Reach for it when Describing evidence, credentials, or a source with decisive credibility.

The survey rested on unimpeachable records from three independent archives.

Words to choose between 6

By register, from playful at the top to literary at the bottom, and by meaning across. Tap a word to see when it fits.
Meaning 1Meaning 2
playful
warm
professional
formal
literary

Meaning 1: Beyond credible doubt or criticism because integrity is exceptionally strong.

  • warm

    exemplary

    Fits when conduct offers a model worth following

    Not when does not mean every criticism would fail

  • formal

    irreproachable

    Fits when conduct invites no justified blame

    Not primarily about factual reliability

  • literary

    incorruptible

    Fits when integrity cannot be bought or degraded

    Not when stronger and narrower than general good character

Meaning 2: Too reliable or authoritative to be called into question.

  • playful

    rock-solid

    Fits when informal praise for dependable evidence

    Not when too casual for judicial or scholarly contexts

  • professional

    authoritative

    Fits when expert standing makes a source dependable

    Not when authority can still be mistaken

  • formal

    indisputable

    Fits when a claim cannot reasonably be denied

    Not when describes the claim rather than its source

Opposites 3

  • reproachable
  • corrupt
  • questionable

Common phrases 3

  • unimpeachable integrity

    Unimpeachable integrity made Chen the obvious choice to oversee the recount.

  • unimpeachable source

    An unimpeachable source confirmed the manuscript's chain of custody.

  • unimpeachable evidence

    The dated negatives supplied unimpeachable evidence of the earlier design.

Definitions and examples are written for this site. How words are chosen Recording: You Fools, British accent, from Wikimedia Commons, CC BY-SA 4.0 Updated