The term 'unused' can be described by a variety of crossword solutions, such as 'OLD' (3 letters), 'STILL' (5 letters), 'EMPTY' (5 letters), 'ABANDONED' (9 letters), 'INERT' (5 letters), 'OBSOLETE' (8 letters), 'NEW' (3 letters), 'IDLE' (4 letters), 'LEFT' (4 letters), 'MINT' (4 letters), and 'inmintcondition' (15 letters). These words all describe something that has not been used or is no longer in use. For example, 'OLD' implies something that has been around for a long time and is no longer in use, while 'NEW' implies something that has not been used yet. Similarly, 'ABANDONED' implies something that was once used but is now no longer in use, and 'inmintcondition' implies something that has never been used.