1.
If you describe someone as ~, you mean that they are unwilling to forgive other people. (FORMAL)
He was an ~ man who never forgot a slight...
He finds human foibles endearing, but is ~ of pretension.
? forgiving
ADJ
2.
If you describe a situation or activity as ~, you mean that it causes a lot of people to experience great difficulty or failure, even people who deserve to succeed.
Business is a competitive activity. It is very fierce and very ~.
ADJ