preoccupate verb2 •(no longer used) To influence, to occupy (the mind) in advance; to be preoccupied with.the mad and fond curiositie of our nature, ammusing it selfe to preoccupate future things, as if it had not enough to doe to digest the present. — 2006 •(no longer used) To meet in advance; to forestall, pre-empt. formspreoccupated · preoccupating · preoccupates