adj.
Pronunciation: ( ˌ )pr ō - ' ak-tiv
Function: adjective
Date: 1933
1 [ 1 pro- ] : relating to, caused by, or being interference between previous learning and the recall or performance of later learning < proactive inhibition of memory>
2 [ 2 pro- + re active ] : acting in anticipation of future problems, needs, or changes
– pro · ac · tive · ly adverb