Unable to satisfy; hollow; vain.
Containing no elements (as of a string, array, or set), opposed to being null (having no valid value).
Not pregnant; not producing offspring when expected to do so during the breeding season.
Destitute of reality, or real existence; unsubstantial.
Destitute of, or lacking, sense, knowledge, or courtesy.
Destitute of effect, sincerity, or sense; said of language.
Devoid of content; containing nothing or nobody; vacant.
Having nothing to carry, emptyhanded; unburdened.
To make empty; to void; to remove the contents of.
Of a river, duct, etc: to drain or flow toward an ultimate destination.
A container, especially a bottle, whose contents have been used up, leaving it empty.
Difficult or impossible to comprehend or evaluate.
Not ponderable; without sensible or appreciable weight; incapable of being weighed.
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.