It's funny, I think far leftists have actually misappropriated the term "liberal", and now these are political words. I remember that like within a week of CC being started, someone started a good half dozen political threads, under the misapprehension that CC was a political forum, because the word "conservative" probably does have those connotations. And am becoming increasingly aware of the fact that it has different connotations in the States and the UK, for example.
But I think, doctrinally, it's a willingness to submit to the Lord's sovereignty. There's no attempt to alter who He is to fit us; if there's something we're uncomfortable with in Scriptures, we don't twist it to make it more palatable, and to tickle people's ears. I mean, theologically, it's probably an adherence to a more traditional view of Christianity but, ultimately, I really think it's a willingness to put God first, regardless of how that means people will react to us.