mistakenly

to think that something is true when it is not

fälschlicherweise annehmen

to think that something is true, especially when you do not have enough information to be sure

fälschlicherweise glauben, dass etwas wahr ist

to incorrectly recognize someone or something

to wrongly decide on the intended meaning of something

fälschlicherweise zuschreiben

to incorrectly think that something is the result of a particular thing

fälschlicherweise denken, dass etwas das Ergebnis einer bestimmten Sache ist

to wrongly consider one thing to be the same as another

to drop bombs on the wrong target by accident