Words formed from any letters in disadvantageousness, plus optional blank

The value of the blank, or of an existing letter already on the game board, is shown at the start of each line.

9 letters

8 letters

u - unideaed  

z - agenized  

7 letters

k - kneaded  

x - indexed  

y - eddying  

6 letters

x - adnexa  

5 letters

4 letters

q - qaid  

x - axed   nixe  

3 letters

x - axe   dex   nix