Synonyms of treacherously
12 similar words · 2 opposite words
Another word for treacherously is false. Other synonyms of treacherously are dastardly, unfaithfully, traitorously, perfidiously and traitorwise. The opposite of treacherously is loyally.
Synonyms and similar words for treacherously
adverbIn a treacherous manner.
- dastardlyIn a cowardly or treacherous fashion.
- traitorlyTraitorously.
- traitorwiseIn the manner of a traitor; traitorously.
- disloyallyIn a disloyal manner.
- falseIn a dishonest and disloyal way; falsely.
- falselyIn a false manner.
- JudaslyIn a manner resembling Judas Iscariot; traitorously.
- perfidiouslyIn a perfidious manner.
- ratlikeIn a ratlike way.
- traitorouslyIn a traitorous manner; treacherously.
- unfaithfullyIn an unfaithful manner.
- proditoriously obsoleteIn a proditorious manner; treacherously, traitorously.
Opposite of treacherously
adverbMore antonyms
- faithfully
- loyallyIn a loyal manner, faithfully.
Meaning of treacherously
- adverb In a treacherous manner.
treacherously in other languages
Questions about synonyms of treacherously
- What is another word for treacherously?
- Treacherously has 12 synonyms on Word.ws, such as false, dastardly, unfaithfully, traitorously, perfidiously, traitorwise, disloyally and Judasly.
- What is the opposite of treacherously?
- The opposite of treacherously is loyally.
- What does treacherously mean?
- Treacherously means in a treacherous manner.
Source and license
Adapted from Wiktionary: treacherously (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of treacherously.” Word.ws, https://word.ws/synonyms/treacherously. Based on Wiktionary, CC BY-SA 4.0.