Having a smooth bore. Used of a gun barrel. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "unrifled" in a sentence
"The TruBall shoots very well; my unrifled Ithaca 37 prints sub-2-inch groups with them at 50 yards."
"The man was armed, but the women were burdened with his own belongings -- the medicine chest -- his saddle and bridle -- his unrifled mule-pack -- and, wonder of wonders! the presents Khinjan's sick had given him, including money and weapons."
"Then attacking the other hand, he jumped down, fur unrifled, and walked off."