treacherous
adjective/ˈtretʃərəs/
/ˈtretʃərəs/
- that cannot be trusted; intending to harm you synonym deceitful
- He was weak, cowardly and treacherous.
- lying, treacherous words
Oxford Collocations Dictionaryverbs- be
- prove
- become
- …
- extremely
- fairly
- very
- …
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- dangerous, especially when seeming safe
- The ice on the roads made driving conditions treacherous.
- the mountain’s notoriously treacherous rocky crest
Oxford Collocations Dictionaryverbs- be
- prove
- become
- …
- extremely
- fairly
- very
- …
Word OriginMiddle English (in sense 1): from Old French trecherous, from trecheor ‘a cheat’, from trechier ‘to cheat’.
Check pronunciation:
treacherous