dead donkey
rareness
uncommon
ultrarare
geason
extraneity
rare
unique
unusual
seldomness
uncommonness
rocking horse shit
rareish
semirare
attenuate
anomalism
rare as a four-leaf clover
semiobscurity
not grow on trees
rarer than hens' teeth
sporadic
rarity
rare as rocking horse shit
remarkable
ugliness
inapplicability
unusualness
sporadicalness
rarefactional
sporadical
sparsistent
unusuality
some something or other
uncongeniality
uncommonly
mystery
miscegenistic
unmiraculous
rarefiable
peculiar
something or other
miscegenative
tenebrose
obtrusiveness
antrin
miscegenic
simulacrum
wild
deal
historically