discommend
/ˈdɪskəmend/; /ˌdɪsˈkɑmənd/Definitions
1. verb
to withdraw or revoke a recommendation, or to advise against something
“The politician’s advisors discommended his proposal to the public.”
2. noun
a withdrawal or revocation of a recommendation, or a formal statement advising against something
“The company’s discommendation of the product led to a significant loss in sales.”