He further impressed his contemporaries by his psychological profundity and abstruseness.
But abstruseness is a quality appertaining to no subject per se.
abstruseness in expression is very frequently regarded as an indication of profundity.
It was true that she had it upside down; but, as he remarked, that only added to the abstruseness of the subject.
The most wrinkled Æson of an abstruseness leaps rosy out of his bubbling genius.
It is the abstruseness of the proposition which stimulates research—which stirs profoundly the brain of the thinking world.
And the important fact is that this abstruseness is not verbal, any more than it is the abstruseness of fog and cloud.