Depending on the context, you can describe it as incongruous juxtaposition.

From google dictionary:

jux·ta·po·si·tion ˌjəkstəpəˈziSH(ə)n/ noun

• the fact of two things being seen or placed close together with contrasting effect. "the juxtaposition of these two images"

in·con·gru·ous

ˌinˈkäNGɡro͞oəs/ adjective

• not in harmony or keeping with the surroundings or other aspects of something. "the duffel coat looked incongruous with the black dress she wore underneath"

Depending on the context, another option can be incongruous juxtaposition.

From google dictionary:

jux·ta·po·si·tion ˌjəkstəpəˈziSH(ə)n/ noun

• the fact of two things being seen or placed close together with contrasting effect. "the juxtaposition of these two images"

in·con·gru·ous

ˌinˈkäNGɡro͞oəs/ adjective

• not in harmony or keeping with the surroundings or other aspects of something. "the duffel coat looked incongruous with the black dress she wore underneath"

Incongruous juxtaposition

When two things are incongruous but are juxtaposed

Depending on the context, you can describe it as incongruous juxtaposition.

From google dictionary:

jux·ta·po·si·tion ˌjəkstəpəˈziSH(ə)n/ noun

• the fact of two things being seen or placed close together with contrasting effect. "the juxtaposition of these two images"

in·con·gru·ous

ˌinˈkäNGɡro͞oəs/ adjective

• not in harmony or keeping with the surroundings or other aspects of something. "the duffel coat looked incongruous with the black dress she wore underneath"