contraindicate
Concise Oxford English Dictionary © 2008 Oxford University Press:
contraindicate/kɒntrəˈɪndɪkeɪt/
▶verb Medicine (of a condition or circumstance) suggest or indicate that (a particular technique or drug) should not be used.
– derivatives
contraindication noun.
contraindication noun.
'contraindicate' also found in these Oxford entries:

