smoothly
adv.in a way that happens without any problems, delays, or sudden changes. You use this to describe a process that is easy and continuous.
adv.in a regular or even manner, without obstructions, difficulties, or sudden interruptions. Often describes the execution of a plan or the physical movement of a surface.
“The meeting went very smoothly and we finished early.”
“After months of careful planning, the transition to the new software system went smoothly for all employees.”
“The transition between the two administrations proceeded smoothly, ensuring that essential public services remained uninterrupted during the handover of power.”
Typically follows the verb it modifies or sits at the end of the clause.
From Middle English smoþely; equivalent to smooth + -ly.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.