The term "gross-headed" can be used to describe someone whose head appears abnormally large or misshapen. However, there are many other words that can be used to convey a similar meaning. Some synonyms for "gross-headed" include "outrageous", "disgusting", "repulsive", "revolting", "unpleasant", "unsightly", "offensive" and "unappealing". All of these words are used to describe something that is visually unattractive and may cause discomfort or disgust in the viewer. When searching for the right synonym, it is important to consider the context in which it is being used and the tone of the language being employed.