The Neue Sachlichkeit

Although they arose in 1920 in opposition to Expressionism, the work o the Verists and the Magic Realists is associated with those of expressionists.

The difference between the two listed by Franz Roh are as follow:

Expressionism

ecstatic objects ,
many religious themes ,
the stifled object,
rhythmic ,
arousing,
dynamic,
loud,
summary,
obvious,
monumental ,
warm,
thick coloration,
roughened ,
like uncut stone,
work process preserved,
leaving traces,
expressive deformation of objects,
rich in diagonals,
often acute,
working against the edges of image,
primitive civilized,

Post-Expressionism

plain objects,
few religious themes,
the explanatory object,
representative,
engrossing,
static,
quiet,
sustained,
obvious and enigmatic,
miniature,
cool to cold,
thin layer of color,
smooth, dislodged,
like polished metal,
work process effaced,
pure objectification,
harmonic cleansing of objects,
rectangular in frame,
parallel,
fixed within edges of image,
civilized,