- Not accurately determined or determinable.
- Imprecise or vague.
- (mathematics, of certain forms of limit) Not definitively or precisely determined, because of the presence of infinity and/or zero symbols used in any of several improper combinations.
- (biology, of growth) With no genetically defined end, and thus theoretically limitless.
- (botany, of inflorescences) Not topped with some form of terminal bud.
not accurately determined