underemployment
noun[C]
uk/ˌʌndərɪmˈplɔɪmənt/usasituationin which someone or something is not used as much as they should be:
Underemployment ofskillsis one of thebiggestconcernsamongrecentgraduates.
thefactof not having enoughworkto do, onlyworkingparttime, or of having ajobthat does not use allyourskills:
Unemployment and underemployment arecloseto 50% in Nicaragua.