I generally view conservative not so much as what one believes, but how one approaches Scripture. First, one must believe it is inerrant and then that it is authoritative for faith and practice. Let me give you two examples of how I look at this.
I know some Baptists who believe in women preachers/pastors. Now I'm speaking from experience, so this doesn't apply across the board. Of those I've known personally (not speaking of anyone I've run across on the internet), they held women pastors based on cultural, progressive and even feminist ideas, without particular regard to what the Bible might have to say on the matter. On the other hand, I've known Pentecostals who believe in women preachers/pastors, and approach it in a completely different way. They based what they believed on what they think the Bible teaches and of which they think it gives examples.
Now, totally apart from what might be right or wrong on this matter, I would call those who hold the first approach "liberal", and those who hold the second approach "conservative". That's just an example of how I see it. Many people see "conservative" and "liberal" in regard to what they themselves believe -- and I guess perhaps we can't help approach it that way to some extent.