smooth as silk
smooth as oil
silky smooth
smooth as a baby's bottom
smooth as butter
ultrasmooth
supersmooth
smoothly
levigate
smoothingly
smoothish
clockwork
sleek
slick
smoothen
smooth
slight
butter
smooth out
flawlessly
snug
besmooth
semismooth
oversmooth
work out
slicken
pristinely
flat
strickle
strike
impeccably
seamlessly
brant
flush
easefully
steady
ultracrisp
slicker
on air
crisply
bein
luxurious
crystally clear
copesetic
copasetic
copesettic
copacetic
smolt
fluidly
ideal
ultracrispy
liquid
ice-calm
legato
ultrarapidly
smooth-bodied
decently
handsome
at home
cleanish
cleanly
howel
unjarring
polishing
clean
microfine
fine as frog hair
oversmoothness
ideally
whooped
serene
smoothability
clear-swept
perfectly
succinctly
tranquilly
spline
ultraperfect
with one hand tied behind one's back
singing
in a walk
slackly
slickered
loosely
cantabile
antiseptic
fluency
in focus
file
inside out