Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Easily excited or upset.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective informal Capable of becoming flustered or upset.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Back-formation from unflappable.

Examples

Comments

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