Contraindicate
/ˌkɑːntrəˈɪndɪkeɪt/
Definition 1 of 1
Pro Tip 1/3Medical Context
The term is mostly used by healthcare professionals and in medical texts. 
Persistent tachycardia contraindicates the use of beta-blockers in his treatment.
Pro Tip 2/3Safety Implication
Using 'contraindicate' often implies a health risk if the advice is not followed. 
The patient's history of ulcers contraindicates the prescription of NSAIDs.
Pro Tip 3/3Not a Command
'Contraindicate' suggests professional advice, not an order or command. 
The physician noted that her condition contraindicates certain forms of exercise.