1. Having or being in a coarse, unpolished, or unfinished state. Though these labs employ rather rough-hewn methods and technologies, I can assure you that our results have been second to none. The performances are certainly rough-hewn, that's without a doubt, but I'd say that it actually lends credibility to the characters as being more organic and believable than if their lines had been honed to sterile perfection.

2. Somewhat lacking in refinement, sophistication, manners, etc. The workers on the oil rig are a bit rough-hewn, but they're damn decent chaps, every single one of them. I tend to head for the more rough-hewn pubs around town. I just find them more charming than their sleeker counterparts.