Bad feelings that you dislike are unpleasant feelings. These unpleasant feelings include things like hatred, disgust, revulsion, and fear. All of those are considered to be a part of the term unpleasant feelings.
This is a jukugo word that uses the on'yomi readings of the kanji. You've learned these readings already so you should be able to read this one too!
If a stranger suddenly put his hand on your head, you would surely feel disgusted.
Since then, whenever I see wisteria vines, I can't help feeling disgusted.
I’m always filled with disgust when I talk with you.