adjective
smoother; -est
having a flat, even surface :not rough :not having any bumps, ridges, or uneven parts
b of a liquid mixture :not having any lumps :mixed together so there are no lumps
happening or done without any problems
even and regular without sudden movements
not having or causing sudden, violent movements
informal :relaxed, confident, and pleasant in a way that may be intended to deceive people
not sharp, bitter, or unpleasant in taste or smell
pleasant to hear or listen to
smooth sailing
take the rough with the smooth
verb
smoothes; smoothed; smoothing
[+ obj] to make (something) smooth
to remove problems or difficulties from a situation
always followed by an adverb or preposition :to spread (something) over a surface (such as your skin) :to apply (something) by rubbing it on a surface
smooth away
[phrasal verb]
smooth (something) away or smooth away (something) :to make (problems, difficulties, etc.) less serious :to remove (problems, difficulties, etc.)
smooth out
[phrasal verb]
smooth (something) out or smooth out (something)
to make (something) smooth or flat
to make (something) easier by removing or dealing with problems
smooth over
[phrasal verb]
smooth (something) over or smooth over (something) :to make (a disagreement, problem, difficulty, etc.) seem less serious than it really is