Some sentence examples which use the word 'unsubstantial'
He expressed in an eager, disjointed, but condensed and laboured fashion, certain deep-lying convictions - that philosophy must come back from unsubstantial metaphysics to the solid facts of human nature and natural science, that the human body was no less important than the human spirit ("Der Mensch ist was er isst") and that Christianity was utterly out of harmony with the age.
It was not long before the unsubstantial character of all these undertakings.
Putting these views aside as unsubstantial, we will consider the relation of the Waldenses as they appear in actual history with the sects which preceded them.