Separate in place; not conjunct or united; with from.
Different from one another (with the preferable adposition being "from").
Capable of being perceived very clearly.
Noticeably different from others; distinctive.
Not ponderable; without sensible or appreciable weight; incapable of being weighed.
Difficult or impossible to comprehend or evaluate.
An imponderable question.
A factor that cannot be anticipated.
An imponderable substance or body; specifically, in the plural, a name formerly applied to heat, light, electricity, and magnetism.