Scorn
Disdain, Contempt
noun, verbal noun
Lightweight scorn, no matter how light, is still scorn. Those feelings are pretty strong no matter what.
軽蔑 is used when you look down on or disdain someone, seeing them as inferior in character or ability. It often follows unethical or disappointing behavior that makes you think, "I can't respect you as a person anymore."
This is a jukugo word that uses the on'yomi readings of the kanji. You haven't learned this reading for 軽 yet, so here's a mnemonic to help you:
You have more scorn and disdain for the KKK (けい) than any other group in the whole world. And I'm not going to argue with you, they're pretty hatable.
私、あの人のこと軽蔑しているの。
I despise them.