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harmful

[ hahrm-fuhl ]
/ ˈhɑrm fəl /
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See synonyms for: harmful / harmfully on Thesaurus.com
adjective
causing or capable of causing harm; injurious: a harmful idea; a harmful habit.
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His boss, whom he admires, is waiting to meet with him about the big project.
His boss, who he admires, is waiting to meet with him about the big project.
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Origin of harmful

before 1000; Middle English; Old English hearmful.See harm, -ful

OTHER WORDS FROM harmful

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Words related to harmful

adverse, bad, catastrophic, damaging, destructive, detrimental, disadvantageous, disastrous, inimical, noxious, painful, pernicious, risky, ruinous, sinful, toxic, unhealthy, unsafe, baleful, baneful

How to use harmful in a sentence

British Dictionary definitions for harmful

harmful
/ (ˈhɑːmfʊl) /
adjective
causing or tending to cause harm; injurious

Derived forms of harmful

harmfully, adverbharmfulness, 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
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