There was an underlying consciousness all the while that he should have to master this anger, and tell her everything, and convince her of the facts.
But he was now a prey to that worst irritation which arises not simply from annoyances, but from the second consciousness underlying those annoyances, of wasted energy and a degrading preoccupation, which was the reverse of all his former purposes.
There are no more uses of "underlie" in the book.
Show samples from other sources
There was an underlying strength to her embrace, the kind of muscle tone that came from hard work.
Nicholas Sparks -- The Longest Ride
The Theorem of underlying Katherine Predictability, he thought.