Longest word without repeating a letter?

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What's the longest possible English word in that every letter occurs only once? Emotion: smile
Regular Member569
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Not even a try?Emotion: sad Well then, I'll give you a hint:
It has 15 letters...
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I'll need time to think about this, or should I say, look it up!Emotion: smile
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2nd hint:

all the five vowels occur...
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It's a bit difficult, and I still haven't had time to find it. Give it a couple of days in case someone else knows it.
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Ok, I will...
but I don't think it's possible to find such a word when you don't know it... it'll be damn hard to conclude a word like that I'd say...
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I tried it, I found 38,000+ words with no letter repetition; the longest were..

dermatoglyphics (15), uncopyrightable (15)

This was from an indexed dictionary of 'normal / regular' words.

Here's the top lot!

15,"dermatoglyphics"
15,"uncopyrightable"
14,"troublemakings"
14,"dermatoglyphic"
14,"ambidextrously"
13,"documentarily"
13,"consumptively"
13,"copyrightable"
13,"endolymphatic"
13,"flowchartings"
13,"hydromagnetic"
13,"lycanthropies"
13,"troublemaking"
13,"unpredictably"
13,"unproblematic"
13,"subordinately"
13,"metalworkings"
13,"multibranched"
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Overwhelming answer.

And almost all those words come from Latin and some of them from Greek.

I like 'dermatoglyphics' , the folds on skin, I never realised I had dermatoglyphics, beautiful word related to fingerprints.

(Is 'overwhelming' correctly used here?)
Regular Member827
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WOW, hey you're all fantastic!
uncopyrightable is the word I was thinking of Emotion: smile
I haven't known that so far until I was told so a few days ago...

Have a great day!
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