The phrase "go ill with" refers to a situation in which two or more things do not work well together, resulting in a negative interaction. There are several synonyms for this phrase that can be used to convey the same meaning. These include "clash with," "conflict with," "contradict," "oppose," "disagree with," and "interfere with." These words all indicate a lack of harmony between different elements. They can be used in a variety of contexts, from describing incompatible ingredients in a recipe to an unfortunate combination of personality traits in individuals. Whether in writing or conversation, choosing the right synonym for "go ill with" can help to convey a more precise and nuanced meaning.