Drain adjectives are listed in this post. Each word below can often be found in front of the noun drain in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing DRAIN.
big, brain, clogged, common, considerable, constant, continual, continued
continuous, covered, current, deep, economic, emotional, enormous, excessive
financial, further, great, heavy, huge, immense, inch, large
long, main, major, natural, new, old, open, penrose
perpetual, physical, same, serious, severe, significant, small, steady
such, terrible, tremendous, unnecessary
Hope this word list had the adjective used with drain you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.