Dictionary

perilous

adjective per·il·ous \ˈper-ə-ləs, ˈpe-rə-\

: full of danger

Full Definition of PERILOUS

:  full of or involving peril <a perilous journey>
per·il·ous·ly adverb
per·il·ous·ness noun
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Examples of PERILOUS

  1. a perilous journey across the mountains
  2. <a perilous journey through hostile territory>

First Known Use of PERILOUS

14th century

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>.
PERILOUSNESS Defined for Kids

perilous

adjective per·il·ous \ˈper-ə-ləs\

Definition of PERILOUS for Kids

:  dangerous 1 <a perilous journey>
per·il·ous·ly adverb

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