未必 Simplified/traditional word 未必 English definition wèi bì not necessarily maybe not HSK level HSK 5 Characters 未 (wèi): not yet; did not; have not; not; 8th earthly branch: 1-3 p.m., 6th solar month (7th July-6th August), year of the Sheep; 必 (bì): certainly; must; will; necessarily;