sloughy Get Printable Handwriting (slough-y) 2 syllables Learn It! Spelling Test Definition adjective. 1 the skin of a snake; esp. the outer layer that is periodically cast off any castoff layer; 2 a hollow filled with mud; bog Example Sentence He fell next to the sloughy edge of the pond. Synonyms shed; scrap; cast off Antonyms cover up Share with your friends: