disinvest Syllabification: (dis·in·vest)Pronunciation: /ˌdisinˈvest/Definition of disinvest verb [no object] withdraw or reduce an investment:the oil industry began to disinvest, and oil share prices have fallen [with object]:they opposed the move to disinvest sharesDerivatives disinvestment noun disinvest in other Oxford dictionaries Definition of disinvest in the British & World English dictionary