The term NOT WORTHLESS can be broken down into three crossword solutions: UTILE (5 letters), USABLE (6 letters), and OFUSE (5 letters). UTILE is derived from the Latin word 'utilis' which means useful. USABLE is an adjective that describes something that can be used or employed. OFUSE is a verb meaning to make use of something. All three words describe something that is not worthless, but rather has some value or purpose.