preventive

[1]	preventative , prophylactic
[2]	hindrance , hinderance , hitch , preventative , encumbrance , incumbrance , interference
[3]	contraceptive , preventative , hindrance , preventative , contraceptive device , curb , inhibition , prophylactic device , impediment , birth control device , block , barrier , obstacle , obstruction
[4]	preventative , prophylactic , protection , shield , safeguard , prevention , countermeasure , counteractant , counter-agent , inoculum/inoculant , vaccine , serum , antidote , remedy

adj.

[1]	preventative , preventing , hindering , impeding , restraining , hampering , inhibitive/inhibitory , inhibiting , restrictive
[2]	preventative , prophylactic , precautionary , anticipatory/anticipative , protective , counteractive
[3]	preventative , prophylactic
[4]	preventative