coarser

As adjectives the difference between coarser and rough

is that coarser is (coarse) while rough is having a texture that has much friction not smooth; uneven.

As a noun rough is

the unmowed part of a golf course.

As a verb rough is

to create in an approximate form.

As an adverb rough is

in a rough manner; rudely; roughly.

As an adjective coarser

is (coarse).

As a verb coarsen is

to make more coarse.

As adjectives the difference between hoarser and coarser

is that hoarser is (hoarse) while coarser is (coarse).

As an adjective coarser

is comparative of coarse.

As a noun courser is

a dog used for coursing.

As adjectives the difference between coarse and coarser

is that coarse is composed of large parts or particles; of inferior quality or appearance; not fine in material or close in texture while coarser is comparative of coarse.