Answer: swimmingly

AnswerCrossword Clue
SWIMMINGLYWith great success
SWIMMINGLYProsperously.
SWIMMINGLYVery well
SWIMMINGLYHow Mark Spitz gets along
SWIMMINGLYWith great ease
swimminglywithout difficulty; with great success; effortlessly.
swimminglySWIMMING
swimminglySmoothly and satisfactorily