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Synonyms

harmless

American  
[hahrm-lis] / ˈhɑrm lɪs /

adjective

  1. without the power or desire to do harm; innocuous.

    He looks mean but he's harmless; a harmless Halloween prank.

    Synonyms:
    benign, unobjectionable, innocent, mild, inoffensive
  2. without injury; unhurt; unharmed.


idioms

  1. hold harmless, to relieve from responsibility or liability for any damage or loss. Also save harmless.

harmless British  
/ ˈhɑːmlɪs /

adjective

  1. not causing any physical or mental damage or injury

  2. unlikely to annoy or worry people

    a harmless sort of man

"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

  • harmlessly adverb
  • harmlessness noun

Etymology

Origin of harmless

1250–1300; Middle English; harm, -less

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.

This means they help the immune system distinguish between harmful threats and harmless targets, preventing unnecessary attacks on the body's own cells, helpful microbes, and everyday foods.

From Science Daily

Those who are supportive of or indifferent to the Fed’s large-balance-sheet policy argue it’s inevitable and inoffensive—a harmless consequence of changes in the financial plumbing since the 2008 panic.

From The Wall Street Journal

The woman looked harmless, but one time she caught Albert Bowie making faces behind her back during class.

From Literature

That antigen was inserted into a harmless, non-replicating adenovirus, which serves as a delivery system for the vaccine.

From Science Daily

The appellate court found that the prosecution failed to meet its burden to demonstrate, beyond a reasonable doubt, that the constitutional error was harmless.

From Los Angeles Times