Robber adjectives are listed in this post. Each word below can often be found in front of the noun robber in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing ROBBER.
armed, bank, be, bold
common, famous, first, grave
great, little, mere, noted
notorious, old, other, penitent
public, second, young
Hope this word list had the adjective used with robber you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.