didn't mean to do it, it just happened by accident

inadvertent

adjective|/ˌɪn.ədˈvɜr.tənt/

Not resulting from or achieved through deliberate planning; unintentional.

Examples

In a meeting

The data leak was inadvertent — a misconfigured permission, not malice.

Over coffee

My inadvertent comment about the surprise party almost ruined everything.

Why this word

accidental

inadvertent emphasizes lack of intention due to inattention, while accidental suggests an unplanned occurrence

unintentional

inadvertent specifically implies happening through oversight or carelessness, while unintentional broadly means not deliberate

careless

inadvertent describes the action as unintended, while careless judges the attitude or attention level of the person

Usage tip

Softer than 'accidental'. Implies the person wasn't paying enough attention rather than being reckless. Good for professional accountability.

Etymology

Latin inadvertens — in (not) + ad (to) + vertere (to turn), literally 'not turning attention to'

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