Reflex adjectives are listed in this post. Each word below can often be found in front of the noun reflex in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing REFLEX.
automatic, autonomic, certain, conditioned, corneal, cremasteric
faint, faithful, first, involuntary, jerk, light
mere, natural, nervous, normal, ocular, pale
patellar, primitive, protective, pupillary, pure, quick
red, simple, spinal, startle, such, true
Hope this word list had the adjective used with reflex you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.