unrepeatable
uniquely
unambiguously
specific
streak
million-dollar
peculiar
idio-
unusuality
unlikeness
distinctify
one and only
ultradistinct
JDLR
way-out
unequalled
unique
specialism
offbeat
unparalleled
unequaled
alone
several
particularly
self
peculiarly
distinctive feature
unaccustomed
peculiarity
snowflake
first-of-its-kind
distinguishing characteristic
uncharacteristic
unusualness
one-of-a-kind
uniquity
singularity
unorthodox
peculiarsome
idiomorphous
special
distinctively
outness
one-off
particularity
rara avis
apart
nonpareil
dual
remarkable