What is original sin?

March 30, 2025 Day 89
The thirteenth question in our catechism is:
“What is original sin?”
The answer is:
“Original sin is the corruption and fault of the nature of everyone naturally descended from Adam, by which we are all very far from original righteousness, and are of our own nature inclined to evil.”
cf. Psalm 51:5, Romans 3:10-12, Romans 8:7 and Article 9.