dissonance
//ˈdɪs.ə.nəns//
Noun
dissonanceSingular
dissonancesPlural
1
A lack of harmony or agreement between things, ideas, or people.
There was a clear dissonance between his words and his actions.
2
A harsh, discordant combination of sounds, especially in music.
The dissonance of the orchestra tuning up filled the concert hall.
3
In psychology, the mental discomfort experienced when holding conflicting beliefs, values, or attitudes simultaneously (cognitive dissonance).
She felt cognitive dissonance when her actions didn't match her beliefs.