The word "无瑕" is formed by combining the character "无", meaning "without", with the character "瑕", meaning "flaw". The character "瑕" consists of the radical "玉" (jade), which denotes its semantic category related to precious stones, and the component "叚", which primarily provides phonetic indication. Thus, "瑕" specifically refers to a blemish in jade, and when preceded by the negating "无", the compound directly signifies "without flaw" or "flawless".