treacherously
- adverb
- /ˈtrɛtʃərəsli/
- The canopy over the catered food sways treacherously; the caterers wag their disapproving heads.
- deal treacherously
Examples
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They are also worried about an economy that has come to seem treacherously unstable; a popular culture that assaults the souls of their children; schools and neighborhoods drained of respect and order; and, particularly in cities and densely packed suburbs, a degraded moral and physical environment.
Academic text (2009) -
They simply don't care whether Jim acted treacherously or only, as was the case, too trustingly.
Academic text (2000) -
Linda found her body already beginning to yield treacherously to the beat of the music.
Fiction book (1995) -
It's being run by fear... fear that would make a man sacrifice his own son... in order to treacherously poison his friends.
-
Some of the quagmires developed into large floating landscapes, treacherously deceptive with their tangled illusion of solidity and permanence.
Fiction book (1990) -
Eventually, we made our way out of the miserable alder maze and onto a long, wide gravel bar that extended for a half-mile upstream, splitting the mighty current into smaller channels, some of which were treacherously deep.
Fiction book (2002) -
Despite promises of partnership and integration, NATO treacherously reneged on its promise not to move eastward in a cynical effort to camouflage and remedy a crisis within the European project itself, thereby revealing the EU as a paper tiger.
Academic text (2015) -
They treacherously betrayed their friend's trust by spreading rumors behind her back.
-
The soldier acted treacherously, revealing secrets to the enemy camp.
-
She treacherously abandoned her long-time partner for someone else.
Synonyms
In a way that shows no loyalty and breaks promises
In a dishonest way that betrays trust
In a way that is not loyal and harms people who trust you
In a way that does not support someone who trusts you
In a way that breaks someone's trust
In a way that betrays your country or its government
In a way that betrays a country or its government
Antonyms
How Treacherous
Surface Forms
Morphology
treacherously = treacherous (transparent) = treacher + ly
The word 'treacherously' is transparently formed from 'treacherous' by adding the adverbial suffix '-ly'.
Etymology
Treacherously comes from the older word treachery, which meant 'betrayal' or 'cheating' and is like playing a 'trick' on someone. So, to act treacherously is to betray someone's 'trust'.