The phrase "more sparse" can be used in written English and is considered grammatically correct.
Example: As the population grows, the once dense forest becomes more sparse.
"The memories got more sparse at that point," he said.
They grow gentler and more sparse around daytime soap operas and talk shows.
At Manivalor Mesila public school in Grand Cape Mount county, facilities are even more sparse.
The further back in time we look, the more sparse the data.
The much more sparse and rapidly advancing "dendritic" projections grow only at their tips.
Distances are more vast, populations are more sparse, and water is more scarce.
"Songs Our Daddy Taught Us" could hardly be more sparse or ghostly.
This in part because Russia's rail network becomes more sparse as it moves east through Siberia.
By this point, the night was getting darker and the fireworks more sparse.
The more sparse, agricultural Ovambo peoples to the south also were drawn into the ivory trade.
"The voicings that sound good on a Rhodes tend to be more sparse," the pianist Jason Lindner said.
