transformed
first-of-its-kind
tiger of a different stripe
different breed of cat
stick out a mile
quasiequivalent
worlds apart
opposite
other
metamorphose
distinct
another story
jar
unlike
xenomorphic
stick out like a sore thumb
stick out like dog's balls
disparate
dead ringer
contrast
change
peculiar
opposites attract
variant
transmogrification
otherling
difference
Zelig
sugar and spice
distinctively
allo-
metamorphic
nother
unreminiscent
different
quiddity
haecceity
unconventional
freak
shapeful
novel
deform
idiomorphous
apparition
distinguishable
mix apples and oranges
hetero-
antitype
one and only
unalike