weaponised adjective 1forms 2phrases 1 adjective1 •Made into, or to serve as, a weapon.Weaponized anthrax is a biological terror weapon, whereas anthrax found in the wild is unlikely to cause a plague. formsmore weaponised · most weaponised Phrases with weaponised weaponised incompetenceA behavioral tactic where a person intentionally pretends to be incapable or performs tasks poorly in order to avoid responsibility and shift the workload to others.