From Longman Dictionary of Contemporary Englishperilousper‧il‧ous /ˈperələs/ adjective literary or formal PMEDGEvery dangerous a perilous journey across the mountains► see thesaurus at dangerous
Examples from the Corpus
perilous• The gnarled tree trunks-white mulberry and rich brown acacia-formed a perilous and nearly impenetrable net.• Nationalism - from Prague to Paris, from Berlin to Budapest - is a potent, perilous brew.• Louis in Conestoga wagons and traveled across the vast, perilous country in search of a better life in the West.• It was a most perilous enterprise, but everything for him depended on it.• Blondin soon became famous as a rope-dancer. Nothing was too perilous for him to attempt.• No feat was too perilous for him to attempt.• A perilous leap to the edge was followed by a difficult scramble over slimy rock faces.• a perilous mountain road• They forgot Mary, forgot everything except their own perilous plight.• Refugees cross the rugged San Ysidro mountains, and it is always a perilous trip.• But much more sorry that you have behaved in such an improper and perilous way. 