It was a hazardous voyage.
These are hazardous chemicals that can cause death if inhaled.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hazardous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 1549
in the meaning defined at sense 2
See Words from the same yeardangerous, grave, grievous, jeopardizing, menacing, parlous, perilous, risky, serious, threatening, unhealthy, unsafe, venturesome;
harmless, innocent, innocuous, nonhazardous, nonthreatening, safe, unthreatening;
dicey, insecure, precarious, treacherous, uncertain;
adverse, bad, baleful, baneful, deleterious, detrimental, evil, harmful, hurtful, ill, inimical, injurious, malignant, nasty, noxious, pernicious, pestilent;
deadly, deathly, destructive, dire, fatal, fateful, lethal, mortal, murderous;
: involving risk or danger
Thesaurus: All synonyms and antonyms for hazardous Spanish Central: Translation of hazardous Nglish: Translation of hazardous for Spanish speakers Britannica English: Translation of hazardous for Arabic speakers
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