a measure taken in advance to avert possible evil or to secure good results.

caution employed beforehand; prudent foresight.

to forewarn; put on guard.

noun

carelessness

noun

anticipation , canniness , care , caution , circumspection , discreetness , discretion , foresight , forethought , insurance , protection , providence , provision , prudence , regard , safeguard , safety measure , wariness , calculation , carefulness , chariness , gingerliness , forehandedness , foresightedness , forethoughtfulness