- not miscible; incapable of being mixed.
- (of two or more liquids) incapable of being mixed to form a homogeneous substanceoil and water are immiscible
- Incapable of being mixed or blended, as oil and water.
- Incapable of being mixed or blended together. Immiscible liquids that are shaken together eventually separate into layers. Oil and water are immiscible. Compare miscible.