There are a lot of words that we throw around in the evangelical world that are so commonly (mis)used and so broadly applied that they cease to be meaningful.
Here are a few I came up with...
Legalism: A belief you hold to that I don't like or that makes me uncomfortable in my own actions.
Is there a real issue of legalism in the church? Sure. Is every rule or restriction an example of legalism? Hardly. Where Scripture is silent, we should be cautious to not be dogmatic. I think Christians should abstain from drinking for a variety of reasons: possibility of "brother stumbling", appearance of worldliness, the general social ills of alcohol, the concern over "how much is too much" when avoiding sinful drunkenness. I am also cautious to point out that drinking in and of itself is not prohibited and not sinful. Just because you can doesn't mean you should is my stance. That is not legalism. If I say that playing cards is sinful, that probably qualifies as legalism. On the other hand, where scripture speaks, we should humbly but firmly speak.
Bible-believing: What we teach is what the Bible teaches
Is there a church that says we are a Bible unbelieving church? I think Bible believing is an OK, if redundant, statement. All Christians by nature are Bible believing, if you don't believe in what the Bible says, you are hard pressed to make the case that you are a Christian. The problem is that the underlying implication is that what we believe, often tertiary issues and church traditions are the Biblical model and if you don't believe in them, you are not Bible believing. I think there is absolutely no Scriptural warrant for infant baptism, either in command or example. I think it is an error to baptize infants. I do not think my paedobaptist brothers don't believe in the Bible. I think they are wrongly applying baptism but that is not because they are not "Bible-believing".
Unbiblical: My church tradition is different from yours, so yours is unbiblical
This is a tough one. There is a world of difference between unbiblical and extra-Biblical. In my eyes, unbiblical implies something that is contrary to the express teaching of the Bible. An example might be works based justification. That is something that would be a teaching contrary and in opposition to the Bible. I would say that on the flip side are things like dogmatic assertions about eschatology. The end times are unclear enough to give anyone pause whether a-, post- or pre- millenial in doctrine, and therefore expressions of certainty about areas of eschatology that are vague are extra-Biblical.
What are some words you think are misused, overused, abused in the church?