This is a concept developed by Carl Rogers that involves accepting and respecting others without judgment or evaluation - basically showing complete support for someone no matter what they say or do.
Related terms
Conditional Positive Regard: This is when approval, praise, or love are given only under certain conditions.
Non-judgmental: The ability to avoid making judgments about others based on personal standards or opinions.
Empathetic Listening: A way of listening and responding to another person that improves mutual understanding and trust.