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

The plot follows the titular character’s inadvertent entanglement in a high-stakes espionage caper. —Naman Ramachandran, Variety, 13 Feb. 2025

Maybe there is an inadvertent or malicious leak that causes a major counterintelligence breakdown. —Anna Mulrine Grobe, The Christian Science Monitor, 12 Feb. 2025

That was the Malachi Flynn team of 2019-20 that went 30-2 before the NCAA Tournament was scrapped because of the pandemic (and also had a 17-2 run when Nevada’s only basket was an inadvertent tip-in by an Aztecs player). —Mark Zeigler, San Diego Union-Tribune, 12 Feb. 2025

Filmmaker Cabrera belatedly discovers in her latest feature that Chris Marker’s 1962 sci-fi photomontage La Jetée, made the same year that Algeria gained independence from French colonial rule, might also be an inadvertent historical document of her own family. —Samantha Bergeson, IndieWire, 10 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