treacherousness

noun

Definition of treacherousnessnext
as in underhandedness

Related Words

Relevance

Dissimilar Words

Example Sentences

Recent Examples of Synonyms for treacherousness
  1. secrecy
  2. shrewdness
  3. hypocrisy
  4. artfulness
  5. stealthiness
  6. shadiness
  7. deviousness
  8. sneakiness
Noun
  • Even in areas where machines may genuinely make life better, the decisions are being made in secrecy.
    — Evan Osnos, New Yorker, 3 Aug. 2026
  • This level of secrecy reflects the strategic importance of the program, which is intended to preserve the United States’ technological advantage in air combat.
    — Prabhat Ranjan Mishra, Interesting Engineering, 31 July 2026
Definition of secrecy
Noun
  • Spain’s shrewdness came in their refusal to engage with off-the-ball trivialities.
    — Adam Crafton, New York Times, 20 July 2026
  • Instead, Franklin will rise by virtue of hard work and (actual) shrewdness.
    — John Swansburg, The Atlantic, 15 June 2026
Definition of shrewdness
Noun
  • Other controversies have underscored the dubiousness of Anthropic’s commitment to its mission and the hypocrisy of its goodie-two-shoes act.
    — Frank Landymore, Futurism, 5 Aug. 2026
  • Mathematician Benjamin Banneker wrote to Secretary of State Thomas Jefferson, condemning his hypocrisy for owning slaves.
    — USA Today, USA Today, 4 Aug. 2026
Definition of hypocrisy
Noun
  • All of this shone vividly through his work, which shared his joy, artfulness and deep feeling, and most of all privileged human experience and social interaction.
    — Los Angeles Times, Los Angeles Times, 18 June 2026
  • Mike Bowman, designer, furniture industry expert, and director of marketing for Harmonia Living, says this trend relies on furnishings to bring artfulness to a space—rather than just functionality.
    — Patricia Shannon, Better Homes & Gardens, 10 Jan. 2026
Definition of artfulness
Noun
  • Alois Ruf is a modest man who has grown the family business—Porsche optimization—with a steely stealthiness and notable technical ambition.
    — Jason Barlow, Robb Report, 13 July 2026
  • But what surprised me most about these curls was the stealthiness of the burn.
    — Taylor Tobin, Southern Living, 1 Oct. 2025
Definition of stealthiness
Noun
  • The actor earned breakout status thanks to perfecting a mix of faux-friendliness and corporate shadiness on Severance, and that combo is put to extremely good use here.
    — David Fear, Rolling Stone, 28 July 2026
  • Ron’s crusade against corporate shadiness (and shoddiness) never generates much suspense.
    — Judy Berman, Time, 9 Oct. 2025
Definition of shadiness
Noun
  • The piece urges critical inquiry into such claims, emphasizing that human oversight, not AI's inherent deviousness, can be a sizable contributor.
    — Lance Eliot, Forbes.com, 5 Aug. 2026
  • The rules allowed offensive linemen to grapple and hold the bottom of their shoulder pads with savvy bordering on deviousness.
    — Alec Lewis, New York Times, 24 July 2026
Definition of deviousness
Noun
  • In The Executioners, and the 1962 and 1991 film adaptations of that novel, Cady is a predator specifically of women — even more specifically, young women — and he’s known for this, more so than his sneakiness, cleverness, or time served.
    — Roxana Hadadi, Vulture, 26 June 2026
Definition of sneakiness
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

treacherous
treacherousness
treachery
See all Nearby Words

Cite this Entry

“Treacherousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treacherousness. Accessed 9 Aug. 2026.

Copy Citation
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of anecdote

See Definitions and Examples »

Popular in Grammar & Usage

See More

7 Pairs of Commonly Confused Words

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

'Sneaked' or 'Snuck': Which is correct?

Why does English have so many silent letters?
See More

Popular in Wordplay

See More

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Aug. 7

How long is a jiffy?
See More

Popular

See More

7 Pairs of Commonly Confused Words

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
fridge-magnet-letters
Drop a Letter Quiz August 2026 Drop a letter from a word to make a totally diffe...
See All