It's the definition when you're talking about liberalism for sure. But that's not what I'm referring to. The other definition is the one which, in context, I am obviously referring to.
one who is open-minded or not strict in the observance of orthodox, traditional, or established forms or ways
With the previous definition, it is clear I am talking about leftists. Context is king.
But, lesson learned; don't use the phrase liberal outside of a philosophical/academic context.