adjective
an adjective is a word that describes or modifies a noun or pronoun. In this case, 'scrubby' describes something that is covered in or consisting of scrub, or something that is inferior or shabby in quality.
The scrubby brush was used to clean the delicate surface.
I grabbed a scrubby sponge to clean up the mess in the kitchen.
I found a scrubby old towel to wipe down the table.
The scrubby appearance of the garden reflected neglect and disrepair.