Thesaurus

perilous

adjective

Synonym Discussion of perilous

dangerous, hazardous, precarious, perilous, risky mean bringing or involving the chance of loss or injury. dangerous applies to something that may cause harm or loss unless dealt with carefully.
    • soldiers on a dangerous mission
hazardous implies great and continuous risk of harm or failure.
    • claims that smoking is hazardous to your health
precarious suggests both insecurity and uncertainty.
    • earned a precarious living by gambling
perilous strongly implies the immediacy of danger.
    • perilous mountain roads
risky often applies to a known and accepted danger.
    • shied away from risky investments

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