occasional
rare
almost unheard-of
cheeseparing
chinchy
chintzy
exiguous
meager
miserly
niggardly
piddling
poor
scant
scanty
scarce
scattered
scrimping
scrimpy
seldom met with
seldom seen
skimping
skimpy
slim
slow
sparse
sporadic
spotty
sprinkled
stingy
thin
thing
tight
uncommon
unfrequent
unique
unusual
casual
desultory
fitful
frequent
incidental
informal
memorable
periodic
short-lived
transient
unauthorized
uncertain
uneventful
unforeseen
unimportant
unsatisfactory
unwelcome
sequent
abounding