un·flap·pa·ble

[uhn-flap-uh-buhl]
adjective
not easily upset or confused, especially in a crisis; imperturbable.

Origin:
1950–55; un-1 + flap + -able

un·flap·pa·bil·i·ty, noun
un·flap·pa·bly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
unflappable (ʌnˈflæpəbəl) [Click for IPA pronunciation guide]
 
adj
informal hard to upset; imperturbable; calm; composed
 
unflappa'bility
 
n
 
un'flappableness
 
n
 
un'flappably
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Unflappable is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a fool or simpleton; ninny.
Etymonline
Word Origin & History

unflappable
1958, from un- (1) "not" + flap (v.) + -able. Originally used in ref. to Harold Macmillan, British P.M. 1957-63.
Online Etymology Dictionary, © 2010 Douglas Harper
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Slang Dictionary

unflappable definition


  1. mod.
    not subject to distraction; imperturbable. : She is totally unflappable.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Example sentences
In an organization where risk and pressure are as common as a cup of coffee, he
  was unflappable.
Not with his determined effort, non-stop motor and unflappable stare.
The unflappable chief said that as long as the students behaved, he could do
  nothing.
On the inside everyone is likewise unflappable, but in the face of more
  extraordinary activities and revelations.
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