Displeasure is a feeling of unhappiness or annoyance. The displeasure on your mom's face will clearly show you how she feels about you letting your pet guinea pigs sleep in her bed.
Use the word displeasure when you are irritated by something or sternly disapprove of it. If your uncle hates surprises, an enormous surprise fortieth birthday party might result in displeasure rather than the happy smile you imagined. One way for citizens to express their displeasure with elected officials is to vote against them — another might be staging a protest.