all-time
alone
incommensurable
matchless
nonpareil
one
one and only
peerless
unequaled
unequalled
unique
unmatchable
unmatched
unparalleled
unrivaled
unrivalled
alien
apart
beyond compare
beyond comparison
detached
disconnected
discrete
disjunct
disrelated
dissimilar
dissociated
easily first
exotic
extraneous
facile princeps
foreign
immortal
incommensurate
independent
inimitable
insular
invincible
irrelative
isolated
not comparable to
nulli secundus
of different orders
other
outlandish
removed
second to none
segregate
separate
separated
strange
sui generis
superior
superlative
supreme
surpassing
transcendent
unaffiliated
unallied
comparable
uncomparable
astonish
consummate
exceptional
ineffable
marvelous
poetic
wondrous