Simple and straightforward (2-8)
(Other definitions for no-nonsense that I've seen before include "Down-to-earth" , "Sensible and straightforward" , "Simple, sensible" , "Straightforward, practical" , "Simple, straightforward" .)
(Other definitions for no-nonsense that I've seen before include "Down-to-earth" , "Sensible and straightforward" , "Simple, sensible" , "Straightforward, practical" , "Simple, straightforward" .)