1. adjective Unrefined, uncultured, or unintellectual, as in style, content, or quality; coarse or vulgar. I used to look down on people who watched lowbrow movies and TV shows in their spare time, but as I've gotten older I've started to see the appeal in it. The premise is clever enough, but it's so overladen with lowbrow humor that I could never really enjoy it fully.

2. noun A person with such tastes or opinions. I thought the crass jokes were appalling, but all the lowbrows in the audience obviously thought they were hilarious. You wonder how anyone could enjoy such drivel, until you remember the sheer number of lowbrows there are in this country.