The phrase "chopped off head" is a gruesome one, evoking images of violence and bloodshed. However, there are several synonyms that can be used to soften the impact of this phrase. Some possible alternatives might include "severed head," "decapitated head," or "cut-off head." Other options could include "beheaded," "executed," or "removed." While these words may still convey a sense of horror, they offer a less graphic depiction of the act. Ultimately, the choice of synonym will depend on the context and tone of the writing, as well as the writer's desired impact on the audience.