未必尽然 wèibìjìnrán not necessarily so Origin Definitions Defs Strokes Stroke Words Sentences Sents 未必 wèibì adverb not necessarily not necessarily; may not; indicates that something is not certain to be true or happen尽然 盡然 jìnrán to be entirely so To be completely like that; often used after a negative to mean "not necessarily" or "not altogether so".