Undrossy is a rare word in the English language, and its pronunciation may seem tricky due to its unique spelling. The word is pronounced as /ʌnˈdrɒsi/ in the International Phonetic Alphabet (IPA), and it describes something that is pure and free from impurities. The prefix "un-" negates the noun "dross," which refers to waste or impurities. The suffix "-y" then forms an adjective out of the noun, indicating the purity or cleanliness of the object in question.