Cadaverously is an adjective used to describe something that is very pale, thin, and sickly-looking, often due to illness or poor health. Synonyms for cadaverously include emaciatedly, gauntly, skeleton-like, bony, lankily, thin as a rail, and skeletal. Another synonym for this word is haggard, which describes someone who looks exhausted and worn out. Wraithlike is another synonym, which suggests a ghostly or ethereal appearance. Other related words include anorexic, malnourished, and starved, which all describe someone who is severely undernourished and looks very thin and unhealthy. Overall, there are many different synonyms for the word "cadaverously" that can be used to describe a wide range of physical appearances.