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Synonyms

perilous

American  
[per-uh-luhs] / ˈpɛr ə ləs /

adjective

  1. involving or full of grave risk or peril; hazardous; dangerous.

    a perilous voyage across the Atlantic in a small boat.

    Synonyms:
    risky
    Antonyms:
    safe

perilous British  
/ ˈpɛrɪləs /

adjective

  1. very hazardous or dangerous

    a perilous journey

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonperilous adjective
  • perilously adverb
  • perilousness noun
  • unperilous adjective

Etymology

Origin of perilous

First recorded in 1250–1300; Middle English, from Anglo-French perillous, from Latin perīculōsus; peril, -ous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A war which is far from over is already unfolding in unpredictable and perilous ways.

From BBC

Pierce, a Northerner, believed that the Compromise of 1850 had solved the slavery issue, declaring, “We have been carried in safety through a perilous crisis …” He wanted Americans to concentrate on prosperity and peace.

From Literature

It wasn’t immediately clear exactly from where Blom fell, but the area is known to be perilous.

From Los Angeles Times

A slew of software earnings come at a perilous time for the industry and the broader tech sector.

From Barron's

The move comes after leader Kenny MacAskill revealed that the party was unlikely to field candidates in May due to its "perilous financial position".

From BBC