adj. skin·ni·er, skin·ni·est
a. Having very little bodily flesh or fat, often unattractively so; very thin. See Synonyms at lean2.
b. Having little width; narrow: a skinny island.
2. Of, relating to, or resembling skin.
Inside information; the real facts: learned the skinny on their falling-out.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.