The term 'nothing doing' is an idiom that means no progress or activity is taking place. The crossword solutions for this term are IDLE (4 letters), INACTION (8 letters), NIX (3 letters), NOGO (4 letters), NOPE (4 letters), NOWAY (5 letters), NODEAL (6 letters), NODICE (6 letters), and NOSOAP (6 letters). All of these words have similar meanings to the phrase 'nothing doing', as they all indicate a lack of action or progress.