Dictionary.com

perilous

[ per-uh-luhs ]
/ ˈpɛr ə ləs /
See synonyms for: perilous / perilously / perilousness on Thesaurus.com

adjective

involving or full of grave risk or peril; hazardous; dangerous: a perilous voyage across the Atlantic in a small boat.

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Origin of perilous

1250–1300; Middle English <Anglo-French perillous<Latin perīculōsus.See peril, -ous

OTHER WORDS FROM perilous

Words nearby perilous

peril, perilabyrinthitis, perilaryngitis, perilla, perilla oil, perilous, peril point, perilune, perilymph, perilymphangitis, perilymphatic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Words related to perilous

uncertain, touchy, threatening, hazardous, shaky, treacherous, precarious, unstable, delicate, ticklish, rugged, dicey, risky, chancy, exposed, hairy, insecure, loaded, unhealthy, unsafe

Example sentences from the Web for perilous

British Dictionary definitions for perilous

perilous
/ (ˈpɛrɪləs) /

adjective

very hazardous or dangerousa perilous journey

Derived forms of perilous

perilously, adverbperilousness, noun
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