When it comes to assigning blame or responsibility for something, we often use the phrase "impute to." However, there are a variety of synonyms that can be used to convey the same meaning. For example, you might say that someone is "attributing" something to another person, or "charging" them with a particular offense. You could also say that they are "assigning" or "ascribing" blame. Other options might include "laying responsibility at the feet of" someone, or "holding accountable" for a particular action. The right synonym will depend on the context and tone of the situation, but there are plenty of options available.