Collocations for simplicity - noun

elegant
extreme, great
stark
The stage design is striking in its stark simplicity.

relative
apparent
Don't be fooled by the music's apparent simplicity.

deceptive
childlike
Her views of the world have a childlike simplicity.

have

simplicity of
I find elegance in the simplicity of approach.

for simplicity
For simplicity, I shall continue to use the accepted term.

be simplicity itself (= to be very simple)
His solution to the problem was simplicity itself.

for simplicity's sake, for the sake of simplicity
For the sake of simplicity, we will focus on the two most common cases.