inadvertent

adjective

in·​ad·​ver·​tent ˌi-nəd-ˈvər-tᵊnt 

1

: unintentional

an inadvertent omission

2

: not focusing the mind on a matter : inattentive

inadvertently adverb

Did you know?

The Formation of Inadvertent

It may look innocent, but inadvertent belongs to a class of words that provoke anger in many people who care about language – to wit, the back-formation. Bucking the usual trend in which longer words are formed from shorter ones by the addition of an affix (for example, superficiality from superficial), back-formations are created by clipping off a piece of a longer word; in this case, inadvertent was back-formed from inadvertence or inadvertency. A fair number of these words populate English, including brainwash (from brainwashing), complicit (from complicity), escalate (from escalator), and televise (from television). Certain back-formations, such as liaise (which comes from liaison) rub some people the wrong way. While they are under no obligation to accept liaise, there is nothing inherently wrong with back-formations; they are just another way our language has of creating new words.

Synonyms

• accidental
• casual
• chance
• fluky
• flukey
• fortuitous
• incidental
• unintended
• unintentional
• unplanned
• unpremeditated
• unwitting

Examples of inadvertent in a Sentence

an inadvertent encounter with a rattlesnake in the brush

Recent Examples on the Web

In addition to the inadvertent possibility, there is also the act by a user that explicitly tells generative AI to promote a particular addiction. —Lance Eliot, Forbes, 15 Mar. 2025

Some systems rely on very old programming languages, Flick said in her affidavit, and are vulnerable to being broken by inadvertent user error. —Emily Peck, Axios, 13 Mar. 2025

Wildfires, floods, and deforestation – and other inadvertent effects of human intervention – strip the land of its protective vegetation. —Ethan Stone, USA TODAY, 4 Mar. 2025

In 2023, Pyongyang scrapped a 2018 military accord designed to curb the risk of inadvertent clashes between two countries that remain technically at war, prompting the South to take a similar step. —Reuters, CNN, 12 Feb. 2025

Word History

Etymology

back-formation from inadvertence

First Known Use

1653, in the meaning defined at sense 2

Kids Definition

inadvertent

adjective

in·​ad·​ver·​tent ˌin-əd-ˈvərt-ᵊnt 

1

: not paying attention : inattentive

2

: not meant, sought, or intended : unintentional

an inadvertent violation of the law

inadvertently adverb