lying about one's age; age misrepresentation
Refers to falsely stating one's age, often in formal or official contexts such as applications, profiles, or legal documents.
He lied about his age to try to look younger.
The age misrepresentation was discovered, and the contract became void.
詐称 is a broader term for misrepresentation or false claim, not limited to age. 年齢詐称 specifically means lying about one's age.
Compound of 年齢 (age) and 詐称 (false claim, misrepresentation).