treacherously
Use Treacherously in a sentence
ər adjective
1.
characterized by faithlessness or readiness to betray trust; traitorous.
2.
deceptive, untrustworthy, or unreliable.
3.
unstable or insecure, as footing.
4.
dangerous; hazardous: a treacherous climb.
Origin:
1300–50; Middle English trecherous < Anglo-French, equivalent to trecher deceiver (trech(ier) to deceive + -er -er2) + -ous -ous. Cf. French tricheur trickster
1300–50; Middle English trecherous < Anglo-French, equivalent to trecher deceiver (trech(ier) to deceive + -er -er2) + -ous -ous. Cf. French tricheur trickster
Related forms
treach·er·ous·ly, adverb
treach·er·ous·ness, noun
un·treach·er·ous, adjective
un·treach·er·ous·ly, adverb
un·treach·er·ous·ness, noun
Synonyms
1. unfaithful, faithless, treasonous. 2. deceitful.
1. unfaithful, faithless, treasonous. 2. deceitful.
Antonyms
1. loyal. 2. reliable.
1. loyal. 2. reliable.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
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Link To treacherously
00:10
Treacherously
is always a great word to know.
So is bezoar. Does it mean:
| a gadget; dingus; thingumbob. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Collins
World English Dictionary
treacherous (ˈtrɛtʃərəs) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —adj | |
| 1. | betraying or likely to betray faith or confidence |
| 2. | unstable, unreliable, or dangerous: treacherous weather; treacherous ground |
| 'treacherously | |
| —adv | |
| 'treacherousness | |
| —n | |
| treacherous (ˈtrɛtʃərəs) | |
| —adj | |
| 1. | betraying or likely to betray faith or confidence |
| 2. | unstable, unreliable, or dangerous: treacherous weather; treacherous ground |
| 'treacherously | |
| —adv | |
| 'treacherousness | |
| —n | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
treacherous
early 14c., from O.Fr. trecheros (12c.), from trecheur, agent noun from trechier "to cheat, trick" (see trick). Figuratively, of things, from c.1600.
Online Etymology Dictionary, © 2010 Douglas Harper
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Cite This Source
Example sentences
Fallen timber impeded their progress across the treacherously steep ridges, while snow and lack of food depleted their strength.
Also, precipitation can make the road treacherously slick.
After surrendering according to the usages of war he was treacherously killed.
Precipitation can make the road treacherously slick, so use caution during inclement weather.
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