antihacker adjective 1noun 1forms 1 adjective1 •Opposing or countering computer hackers.The Computer Fraud and Abuse Act, frequently amended, remains an important weapon in the federal government's antihacker arsenal. noun1 •One who is employed to detect and counter computer hackers.I mean, these antihackers are much in demand, make huge salaries, and likely were not at all interested in politics. — 2017 formsantihackers