adjective
detestable
dih-TEST-uh-bl/dɪˈtestəbl/
Deserving intense dislike or disgust.
The man's detestable cruelty toward the dog prompts another person to intervene.

Etymology
The witness root belongs to an expression meaning “denounce with one's testimony,” which developed into cursing or expressing abhorrence. Something detestable is therefore worthy of that strong condemnation.
In context
… to avoid so monstrous and detestable a sight was one principal motive of my retirement hither
More examples
- He has a detestable habit of mocking people who need help.
- I find their casual cruelty detestable.
- The novel's charming villain does some truly detestable things.
Forms
detestable
detest verb — To dislike someone or something intensely.
detestably adverb — In a way that deserves intense dislike.
Similar words
- abhorrent
- Emphasizes deep revulsion, especially toward morally offensive actions or beliefs.
- loathsome
- Emphasizes intense disgust, whether caused by appearance, behavior, or character.