When it comes to finding synonyms for the word "sycophantical," several words come to mind. To begin with, there is "flattering," which refers to the act of praising someone excessively in hopes of gaining their favor. Another option is "obsequious," which describes someone who is excessively eager to please or serve others. "Groveling" is also a possible synonym, as it refers to the act of showing excessive humility or subservience to someone else. Finally, "fawning" can be used to describe someone who is overly eager to please or impress others, often to the point of being insincere or false. Overall, all of these words convey a sense of insincerity or excessive politeness, making them effective synonyms for "sycophantical".