Meaning
不一定 expresses uncertainty or the idea that something is not definite or guaranteed. It indicates that a statement or outcome is possible but not assured, often translating to 'not necessarily' or 'not certain' in English. It's used to soften assertions or acknowledge alternative possibilities.
Usage
Commonly used in daily conversation to express doubt, uncertainty, or to politely disagree with an assumption. Can appear before verbs or at the end of sentences. Often paired with 也许 (perhaps) or 可能 (possibly) to emphasize uncertainty. Native speakers use it to hedge statements or leave room for other outcomes.
Examples
- 01他说的话不一定是真的。.What he says is not necessarily true.
- 02贵的东西不一定就是好的。.Expensive things are not necessarily good.
Characters
Common collocations
- 不一定会might not, not necessarily will
- 不一定对not necessarily correct
- 也不一定also not necessarily
Antonyms
Origin
Literally means 'not fixed/certain.' The character 定 originally meant 'to settle' or 'to fix,' so 不一定 conveys the sense of something that hasn't been settled or determined.