harmful

[hahrm-fuhl]

adjective

causing or capable of causing harm; injurious: a harmful idea; a harmful habit.

Nearby words

  1. harlow, jean,
  2. harm,
  3. harm's way,
  4. harmattan,
  5. harmensen, jacob,
  6. harmfully,
  7. harmless,
  8. harmlessly,
  9. harmolodics,
  10. harmonia

Origin of harmful

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

Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for harmful


British Dictionary definitions for harmful

harmful

adjective

causing or tending to cause harm; injurious
Derived Formsharmfully, 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

Word Origin and History for harmful

harmful

adj.

mid-14c., from harm (n.) + -ful. Related: Harmfully.

Online Etymology Dictionary, © 2010 Douglas Harper