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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.

However, as Barron’s has written, the memory market is prone to cycles of boom and bust, meaning it could be perilous for investors to chase the rally higher.

From Barron's

Her words were echoed by the masseuse, who also warned that the current situation was perilous, telling the BBC: "There's so much fear in the streets and in our homes."

From BBC

As their perilous and ultimately futile journey continues, Ishmaelle and the monk become closer, somehow finding the words to speak to each other across the ocean of linguistic difference between English and Chinese.

From Los Angeles Times

Last October, I decided to make the perilous journey through all five “Scary Movie” films after realizing that I’d never seen a single one in its entirety — only a collection of well-known bits.

From Salon

What happens next isn’t clear, as the U.S. faces the prospect of overseeing Venezuela during a perilous moment.

From The Wall Street Journal