[adjective] - having no personal involvement or receiving no personal advantage, and therefore free to act fairlya disinterested observer/judgmenta piece of disinterested adviceUSAGE: Disinterested is sometimes used to mean not interested, but many people do not consider this use to be correct.
DISINTERESTED
Meaning of DISINTERESTED in English
Cambridge English vocab. Кембриджский английский словарь. 2012