The particular vocabulary used depends very much on the situation.
Discommend, discommendation: consider the usual uses of "commendation" in an academic, policing or military context, perhaps formally, perhaps with sardonic humour. The colloquial "Slagged (me) off" would be more casual.
disapprove (of), dislike,
censure, condemn, criticize, denounce, reprehend, reprobate,
asperse, defame, malign, rip, slander, slur, traduce, vilify,
- quite a few usefull synonyms and synonymous phrases, many of which can take both noun and verbal forms. Again, the context and persons involved must determine which is used.