adj.
Marked by a false show of innocent simplicity: "Their gee-whiz, faux-naif comportment is not always convincing" (Madison Smartt Bell).
[French : faux, false + naïf, naive.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.