Definitions

1. verb

to take or assume something to be true or real when it is not; to take a wrong or mistaken view of something

“She was mistaken in thinking that the company would hire her without an interview.”

2. adjective

incorrect or wrong in thought, opinion, or judgment

“The mistaken assumptions led to a series of unfortunate events.”

3. adverb

in a mistaken or wrong way

“He spoke hastily and was mistaken in his decision.”

4. noun

a mistaken opinion or assumption

“Her mistaken idea about the project’s deadline led to delays.”