General Negativity:
* Abhorrent: Extremely unpleasant and unacceptable
* Appalling: Causing shock or dismay
* Despicable: Extremely unpleasant and deserving of hatred
* Disgusting: Causing feelings of revulsion
* Execrable: Extremely bad or unpleasant
* Hateful: Filled with or expressing hatred
* Reprehensible: Deserving of condemnation
* Vile: Morally wicked
Dishonest and Untrustworthy:
* Deceitful: Intending to mislead or trick
* Duplicitous: Hypocritical; deliberately misleading
* Fraudulent: Obtained by dishonest means
* Lying: Not telling the truth
* Manipulative: Skilled at controlling or influencing others in a dishonest way
* Treacherous: Betraying trust; dangerous
Cruel and Inconsiderate:
* Callous: Showing no concern for others' feelings
* Heartless: Lacking compassion or kindness
* Ruthless: Having no pity or mercy
* Sadistic: Deriving pleasure from inflicting pain
* Vindictive: Seeking revenge
* Malevolent: Wishing evil or harm to others
Abusive and Controlling:
* Abusive: Using physical, emotional, or verbal violence
* Controlling: Attempting to dominate and manipulate others
* Tyrannical: Ruling in a cruel and oppressive way
* Domineering: Asserting control over others
* Overbearing: Oppressively forceful or domineering
Other:
* Arrogant: Having an exaggerated sense of self-importance
* Condescending: Treating someone as if they are inferior
* Ignorant: Lacking knowledge or understanding
* Selfish: Concerned only with oneself
* Narcissist: Having an inflated sense of self-importance
Remember: It's important to consider the context and the specific behaviors of the person you are describing. Using harsh language can be hurtful and unproductive. Try to focus on the specific behaviors that are problematic rather than resorting to name-calling.