How to use Faithlessness in a sentence as a noun

Here's a thought! It could be that our faithlessness is a cowering cowardice born of our very smallness, a massive failure of imagination... If we were to judge nature by common sense or likelihood, we wouldn't believe the world existed. -Annie Dillard

Faithlessness definitions

noun

unfaithfulness by virtue of being unreliable or treacherous

See also: falseness fickleness inconstancy