There are many synonyms for the phrase "think better than." Sometimes, it's important to express the idea that someone believes they are superior or more knowledgeable than others. Some options for alternative phrasing might include "consider oneself superior," "regard others as inferior," or "hold oneself in higher esteem." Other synonyms might include "look down on," "be contemptuous of," or "disparage." Each of these phrases highlights the idea that someone feels they are better or more intelligent than others. However, it's worth noting that using these phrases can be considered rude or offensive, so it's important to be mindful of tone and context.