I just want to share this to you guys.
I just learned this from our Personality Development and Public Relation subject.

If you're a "sensible" type of person, then "fantasy" is a dirty word.
It means that you don't tend to fantasize. You have common sense and is for real.

Do you get what it means?
It's not bad though. It just means that you're into reality. You don't tend to fantasize, daydream or whatsoever.