pre-emptive adj 1: designed or having the power to deter or prevent an anticipated situation or occurrence; "a preemptive business offer" [syn: {preemptive}, {pre-emptive}]
Preemptive \Pre*["e]mp"tive\, a. Of or pertaining to pre["e]mption; having power to pre["e]mpt; pre["e]mpting. [1913 Webster]