Complex adjectives are listed in this post. Each word below can often be found in front of the noun complex in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing COMPLEX.
acre, activated, active, architectural, athletic, building, central, ceremonial, certain, commercial, cultural, emotional, enormous
entire, first, foot, functional, golgi, great, hippocampal, huge, immune, industrial, large, larger, least
ligand, like, little, macromolecular, main, massive, medical, messianic, metal, military, militaryindustrial, modern, molecular
more, most, multiprotein, new, nuclear, oedipal, organic, original, own, particular, political, qrs, related
religious, residential, retail, rich, rise, same, second, similar, single, small, social, specific, sprawling
stable, story, substrate, ternary, total, underground, urban, vast, watergate, whole
Hope this word list had the adjective used with complex you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.