The definition of unflappable is not easily flustered.adjective
When you can deal with an unexpected storm and the caterer not showing up on your wedding day without getting upset, this is an example of when you would be described asunflappable.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Origin: < un- + flap, + -able
- unflappability noun
Used by arrangement with John Wiley & Sons, Inc.
- un·flapˌpa·bilˈi·ty noun
- un·flapˈpa·bly adverb