Synonyms: insubstantiality
Definition: lacking substance or reality
Similar words: immateriality, incorporeality
Definition: the quality of not being physical; not consisting of matter
Synonyms: insubstantiality
Definition: lack of solid substance and strength
Similar words: weakness
Definition: the property of lacking physical or mental strength; liability to failure under pressure or stress or strain
Usage: his weakness increased as he became older; the weakness of the span was overlooked until it collapsed