Granular

Justin and Franklin had been roommates for six months. They disputed everything on a granular level.

If Justin wanted to use the kitchen, Franklin would argue that in the fundamental sense of the word, kitchen is simply a place to cook. Justin could just as easily cook something in his bedroom, say a package of ramen noodles, so it would be correct to say that his bedroom was also a kitchen. Justin would retort that since his name was on the lease, one could consider that the entire apartment technically belonged to him.

Justin and Franklin hated each other immensely.