To reject a parent means to refuse or turn away from them, often due to negative experiences or conflicts, and decide to not maintain a relationship or connect with them. Full definition
Answer: Parent alienation is a disorder, typically discovered during divorce cases that are frequently of high conflict where a child or children reject a parent for no apparent valid reasons. (drbobevans.com)
It is easy to see why many are critical of rejected parents as they observe the rejection. (parentalalienationsupport.com)