perilousadjective
uk/ˈper.əl.əs/us/ˈper.əl.əs/formalextremely dangerous:
The country roads are quite perilous.
Thesaurus: synonyms and related words
Dangers and threats
- baneful
- black spot
- brinkmanship
- calculated risk
- chance
- darkly
- desperately
- dodgy
- gamble
- hazard
- hazardous
- hazmat
- high-risk
- hostage
- poisoned chalice
- precarious
- pull
- pull a gun, knife, etc. on sb idiom
- risk
- treacherous
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perilously
adverb uk/ˈper.əl.əs.li/us/ˈper.əl.əs.li/
She came perilously close to getting herself killed in her attempt to break the world record.