Syllable adjectives are listed in this post. Each word below can often be found in front of the noun syllable in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing SYLLABLE.
accented, added, additional, closed, different, distinct, eleventh, emphatic
extra, fifth, final, first, former, fourth, heavy, initial
last, latter, least, light, long, middle, mystic, new
next, open, other, particular, penultimate, radical, redundant, sacred
same, second, separate, short, single, sixth, stressed, strong
third, unaccented, unstressed, whole, wrong
Hope this word list had the adjective used with syllable you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.