perilous
adjective /ˈperələs/
/ˈperələs/
(formal or literary)- very dangerous synonym hazardous
- a perilous adventure/journey
Oxford Collocations DictionaryPerilous is used with these nouns:- adventure
- journey
- situation
- …
Word OriginMiddle English: from Old French perillous, from Latin periculosus, from periculum ‘danger’, from the base of experiri ‘to try’.