Also found in: Thesaurus.
1. Of exceptional quality or refinement.
2. Excessively delicate or refined.
3. Of extra fine texture: superfine sandpaper.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.