unique

ainutlaatuinen puhekieltä Being the only one of its kind; unequaled, unparalleled or unmatched.
(quote-book)
Of a feature, such that only one holder has it.
particular Particular, characteristic.
puhekieltä Of a rare quality, unusual.
{{quote-book|passage=And as I look back, it seems to me that we were fairly unique, the sixty of us, in that there wasn’t one good mixer in the bunch.
A thing without a like; something unequalled or unparallelled.
De Quincey

The phoenix, the unique of birds.