1. adjective If you describe someone as unforgiving, you mean that they are unwilling to forgive other people. [formal] ⇒ He was an unforgiving man who never forgot a slight. [+ of] ⇒ He finds human foibles endearing, but is unforgiving of pretension. 2. graded adjective & adjective If you describe a situation or activity as unforgiving, 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 unforgiving.
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