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inadvertent

American  
[in-uhd-vur-tnt] / ˌɪn ədˈvɜr tnt /

adjective

  1. unintentional.

    an inadvertent insult.

  2. not attentive; heedless.

    Synonyms:
    inattentive
  3. of, relating to, or characterized by lack of attention.

    Synonyms:
    negligent, careless, thoughtless

inadvertent British  
/ ˌɪnədˈvɜːtənt /

adjective

  1. failing to act carefully or considerately; inattentive

  2. resulting from heedless action; unintentional

"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

Derived Forms

Etymology

Origin of inadvertent

First recorded in 1645–55; abstracted from inadvertence, inadvertency

Explanation

When something happens by accident, it's inadvertent, or unintentional. The gas company assured you that the error in your bill was inadvertent and that they would fix it, but not before you blew off some steam. If you break down the adjective inadvertent you find the word vert, from the Latin vertere, meaning "to turn." Advertent comes to mean "turning the mind to," and as the prefix in- means "not," inadvertent means “not turning the mind to,” or "not intending to." When your actions are inadvertent you're not paying attention to their consequences. Remember that inadvertent ends with -ent by remembering this sentence: “We inadvertently ripped the tent.”

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Vocabulary lists containing inadvertent

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.

Musk has said that his filing delay was inadvertent and that he submitted his disclosure on the business day after his wealth manager consulted legal counsel about potential filing requirements.

From MarketWatch • May 4, 2026

Wrangling Gellar free from her inadvertent nostalgic trappings is no simple task.

From Salon • Mar. 26, 2026

That way if my husband inadvertently saw my conversation history in my sidebar, there would be no inadvertent spoiler.

From The Wall Street Journal • Mar. 13, 2026

At a previous High Court hearing, lawyers for Matt Goodwin and his election agent Adam Rawlinson acknowledged some election leaflets had failed to include a "statutory imprint", something which constituted "inadvertent illegal practice".

From BBC • Feb. 25, 2026

Could there be something special about our location in the universe, as if the Milky Way had performed some inadvertent but offensive act in the social life of galaxies?

From "Cosmos" by Carl Sagan

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