This probably varies a lot by culture (and sub-culture), but 'bookworm' doesn't really have perjorative connotations for me. I know it was probably originally i

This probably varies a lot by culture (and sub-culture), but 'bookworm' doesn't really have perjorative connotations for me. I know it was probably originally intended that way, and it can still be used as an insult, but it feels neutral to me.