precipitate : cause (an event or situation, typically one that is undesirable) to happen suddenly, unexpectedly, or prematurely. aggravate : make (a problem, injury, or offence) worse or more serious. create : bring (something) into existence. defer : put off (an action or event) to a later time; postpone. push : exert force on (someone or something) in order to move them away from oneself.