Congestion adjectives are listed in this post. Each word below can often be found in front of the noun congestion in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing CONGESTION.
active, acute, cerebral, chronic, considerable
general, great, hepatic, intense, internal
less, local, more, much, nasal
passive, pelvic, present, pulmonary, severe
simple, sinus, slight, urban, vascular
Hope this word list had the adjective used with congestion you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.