con·tra·in·di·ca·tion 
(kŏn′trə-ĭn′dĭ-kāshən)
(kŏn′trə-ĭn′dĭ-kāshən)n.
A factor that renders the administration of a drug or the carrying out of a medical procedure inadvisable: A previous allergic reaction to penicillin is a contraindication to the future use of that drug.