Inadvertently is an adverb that means "without knowledge or intent," like when you inadvertently take someone else's coat from the coatroom because it looks just like yours.

When you do something inadvertently, you don't mean to do it — you might inadvertently step in a puddle, leave something important at home, or hurt your friend's feelings. Some things that happen inadvertently aren't mistakes, though: They happen by chance. For example, if you just happen to park your car at the exact place that blocks a bus from hitting a pedestrian, you've inadvertently saved a life.

Definitions of inadvertently

adv without knowledge or intention

unknowingly, unwittingly
advertently, heedfully, mindfully
in a careful deliberate manner
knowingly, wittingly
with full knowledge and deliberation
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