ELI5: Explain Like I'm 5

Relative deprivation

Relative deprivation means feeling deprived compared to other people around you. It means that you feel like you are not as well off as the people around you and this can lead to feelings of unhappiness or jealousy. It's like if you had a toy that your neighbor had that was nicer than yours. It would make you feel bad because you don't have the same toy as them, even though you have a different toy.