Words formed when one letter is changed in unneeded
No words found when changing letter 1 (U).
No words found when changing letter 2 (N).
Letter 3 (N) changed: 4 word found:
No words found when changing letter 4 (E).
No words found when changing letter 5 (E).
No words found when changing letter 6 (D).
No words found when changing letter 7 (E).
No words found when changing letter 8 (D).
A total of 4 words can be formed from unneeded by changing one letter.