The word "gargoylish" has a particular connotation - suggesting something grotesque or eerie. There are many synonyms that can capture this sense of uncanniness or eerie quality. Words like macabre, gruesome, creepy, or spectral come to mind. Other adjectives like grotesque, fiendish, or otherworldly can also convey a similar feeling. Certain synonyms might emphasize different aspects - for example, eerie may suggest an unsettling atmosphere, while ghoulish might imply a macabre or sinister quality. Ultimately, the choice of synonym depends on the exact sense and tone one wants to convey - but by using a striking adjective, writers can create an evocative image that makes a lasting impression on their readers.