Preventive
/pɹɪˈvɛntɪv/
noun
A thing that prevents, hinders, or acts as an obstacle to.
A thing that slows the development of an illness.
A contraceptive, especially a condom.
adjective
Preventing, hindering, or acting as an obstacle to.
Carried out to deter military aggression.
Slowing the development of an illness; prophylactic.