FromMiddle Englishundifferent, equivalent toun- +different.
undifferent (comparativemoreundifferent,superlativemostundifferent)
- Notdifferent.
1993, Bill Myers,My Life As Alien Monster Bait:It's not a big deal, just kind of my way of saying I'm different and I'm gonna stay different and you're not going to make meundifferent.
2009, V. S. Bhaskar,Faith & philosophy of Buddhism - Page 148:The strict training of Zen priests, the daily physical chores, theundifferent wrestling with koans, the long hours of sitting in meditation, and the special intensive periods of exercise are all directed toward this end.
2010, William Gibson,Zero History:"No," said Heidi. "Not that way. That was me, trying to be different. He was asundifferent as you can get, but he was somebody else'sundifferent. I just had this feeling that I could step into somebody else's shoes.[…]"
