Home / HSK Vocabulary / HSK 7–9 / 隐形 隐形 yǐn xíng HSK 7–9 · C2 Meanings invisible Quick facts Traditional隱形 HSK LevelHSK 7–9 CEFRC2 ← Back to HSK 7–9 word list Practice 隐形 with flashcards MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android.