The term 'not so good' can be represented by four different crossword solutions: WORSE (5 letters), BLAH (4 letters), ADVERSE (7 letters), and BELL (4 letters). WORSE is an adjective that means of lower quality or WORSE than expected. BLAH is an adjective that means uninteresting, dull, or unexciting. ADVERSE is an adjective that means unfavorable or harmful. BELL is a noun that refers to a hollow metal object that makes a ringing sound when struck. All four words are used to describe something that is not so good.