noun
incorrectly written character; wrong kanji; miswritten character
Refers to a kanji or character written with the wrong strokes, or a kanji used incorrectly in place of the correct one. Often used in contexts like handwriting mistakes or typing errors.
答案に嘘字が多くて、先生に注意された。
There were many miswritten characters on my exam paper, and the teacher pointed them out.
この漢字は嘘字で、正しくは別の字です。
This kanji is wrong; the correct one is a different character.
Compound of 嘘 (uso, 'lie') and 字 (ji, 'character'). The exact origin is uncertain, but it likely arose from the idea of a 'false' or 'lying' character.