When trying to find the perfect word to describe something or someone that is utterly unacceptable, "damnable" often comes to mind. However, there are plenty of other synonyms that can be used to convey the same message. Some of these include "execrable," "odious," "repulsive," "unholy," "blasphemous," "disgraceful," "vile," "abhorrent," "noxious," "heinous," "deplorable," "detestable," "heartless," and "abominable." Each of these words carries a strong negative connotation that can be used to describe anything from a person's behavior to a situation or event that is simply unacceptable or unforgivable.