Mistake implies misconception or inadvertence and usually expresses less criticism than error. From longman dictionary of contemporary english mis‧tak‧en /məˈsteɪkən/ adjective 1 → be mistaken 2 → mistaken belief/idea/impression/view etc —mistakenly adverb examples from the corpus mistaken • schultz was afraid to say anything, fearing she might be mistaken. If you think you can keep drinking so much without damaging your health, then you're mistaken
Unfortunately i was mistaken about how much it would cost It was a mistake to argue. The negotiations continued in the mistaken belief that a peaceful agreement could be reached.
Wrong or incorrect in opinion, understanding, or perception A mistaken view of the. (usually predicative) wrong in opinion, judgment, etc she is mistaken [not before noun] mistaken (about somebody/something) wrong in your opinion or judgment you are completely mistaken about jane
Unless i'm very much mistaken, that's paul's wife over there. The phrase if i'm not mistaken (and variations) is used to indicate that one is uncertain about something one has said. Someone who's mistaken is confused or wrong about something If you think your guidance counselor is mistaken about what you should do with your life, you will probably ignore his advice.
A mistake, grave or trivial, is caused by bad judgment or a disregard of rule or principle