"Thinking highly of" is a phrase that reflects admiration, respect, and appreciation for someone or something. But there are times when we need to express the opposite sentiment. Here are some antonyms for "thinking highly of":
1. Disparaging - expressing negative opinions about someone or something.
2. Discrediting - casting doubt on the value, correctness, or validity of something.
3. Demeaning - belittling, humiliating or degrading someone.
4. Ridiculing - making fun of or mocking something.
5. Reviling - insulting, vilifying or abusing someone or something.
Using antonyms for "thinking highly of" provides an alternative when wanting to express distaste towards something or someone. It can also be helpful in expressing balance or neutrality when discussing a topic.