Misrepresentation
False Statement
noun, verbal noun
If you lie about your title, the title which represents who you are, then that is a misrepresentation. A false statement.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
庭師は彼女が年齢を詐称していることにすぐに気がつきましたが、何も言いませんでした。
The gardener immediately recognized the misrepresentation of her age but didn’t say anything.