Adultery is when you committ and act of unfaithfulness or when you sell you body or services in this case she was unfaithful and it is considered so sinful because in that time and age religion was law so in this case she was breaking both things that were important to that society
The conflict of the story is that hester committed adultery and disgraced the society this effects the story because its shows how things were taken more seriously back in those times
