Search Dictionary
Definition of treacherousness

treacherousness

/ˈtrɛtʃ.ɚ.əs.nəs/
treach · er · ous · ness
Adverb:treacherously
•
Adjective:treacherous
JUMP TO:

treacherousness Lexical Profile

treacherousness Game Scores & Validity

• noun

1

The quality of presenting hidden, unpredictable, or deceptive dangers (especially of terrain, weather, or physical conditions).

Example

"Experienced mountaineers never underestimate the treacherousness of the glacier's shifting crevasses."

2

The quality or state of being guilty of or involving betrayal, deception, or untrustworthiness.

Example

"The historical drama explores the political treacherousness that ultimately led to the downfall of the dynasty."

Synonyms
View all synonyms for treacherousness
Antonyms
View all antonyms for treacherousness

Word Nuance & Usage

While 'treachery' usually refers to a deliberate act or habit of betrayal, 'treacherousness' more frequently emphasizes the inherent quality of being deceitful or the deceptive perilousness of physical conditions (such as weather or terrain).

• Rhymes for treacherousness

• Nearby Words

trayful
treacherous
treacherously
treacherousness
treachery
treacle
tread

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Treacherousness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/treacherousness
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.