reactive
re.ac.tive \re--'ak-tiv\ \(.)re--.ak-'tiv-*t-e-\ aj 1: of, relating to, or marked by reaction or reactance 2: tending to or resulting from reaction - re.ac.tive.ly av
Webster's English Dictionaryre.ac.tive \re--'ak-tiv\ \(.)re--.ak-'tiv-*t-e-\ aj 1: of, relating to, or marked by reaction or reactance 2: tending to or resulting from reaction - re.ac.tive.ly av