Home / HSK Vocabulary / HSK 2 / 不一定 不一定 bù yī dìng HSK 2 · A2 Meanings not necessarily maybe Quick facts HSK LevelHSK 2 CEFRA2 ← Back to HSK 2 word list Practice 不一定 with flashcards MandoBridge uses spaced repetition to help you remember HSK 2 vocabulary — free on iOS and Android.