Meaning
something abased, humiliated, or treated with contempt
Example
هَذِهِ فِكْرَةٌ مُمْتَهَنَةٌ This is a despised/contemptible idea.
Notes
وزن مُفْتَعَلَة: مؤنث اسم مفعول Derived from Form VIII (اِفْتَعَلَ). Verb اِمْتَهَنَ means "to practice a profession" or "to abase/humiliate.”