| not precisely determined or established; not fixed or known in advance | having more than one possible meaning |
| having a capacity for continuing to grow at the apex | open to two or more interpretations; or of uncertain nature or significance; or (often) intended to mislead |
| of uncertain or ambiguous nature | having no intrinsic or objective meaning; not organized in conventional patterns |
| not leading to a definite ending or result | |
| (of a quantity) having no definite value, as an equation that cannot be solved | |