必要 bì yào
“necessary; essential; indispensable”
adjective, adjective / nounHSK 5 · 2021 list level 3
新HSK等级2025 HSK 3.0 syllabus level
必要 appears in the November 2025 exam syllabus in the following numbered entry. Levels refer to the listed reading and use, not every meaning.
- Entry 2052: 必要 bìyào — Level 5; official annotation 5 (形). PDF page 131
Separate from the HSK 2.0 and 2021 list labels above. Compare the three lists.