smooth
having an even and regular surface;

in a way that is without difficulties

see another keyword links:
even

regular

surface

way

without

difficulty

going smoothly
having no trouble
encountering no difficulties

smooth going
going smoothly
done successfully

smooth-going
smooth and orderly

smooth and steady

slippery
smooth

to lubricate
lubrication

glossy, smooth, sleek

to moisturize
nourishing-moistening

even, smooth

safe and well
level, smooth, extensive

smoothly
unobstructed
easily accessible

fluent
smoothly
efficiently
unhindered
smooth and unhindered

lucky in every endeavor
go smoothly everywhere
successful in whatever one does

prosperous
go smoothly

success in business
flourishing financially
go through smoothly

become smoothed out

Still waters run deep.
Smooth water runs deep.

smooth and pleasant
mellow taste or flavor
(for wine or any fermenting product)

close lightly
purse up lips
to smooth with a wet brush

sweet words
smooth talking