ironclad

[adj. ahy-ern-klad; n. ahy-ern-klad]
adjective
1.
covered or cased with iron plates, as a ship for naval warfare; armor-plated.
2.
very rigid or exacting; inflexible; unbreakable: an ironclad contract.
noun
3.
a wooden warship of the middle or late 19th century having iron or steel armor plating.

Origin:
1850–55; iron + clad1

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ironclad
Collins
World English Dictionary
ironclad
 
adj
1.  covered or protected with iron: an ironclad warship
2.  inflexible; rigid: an ironclad rule
3.  not able to be assailed or contradicted: an ironclad argument
 
n
4.  a large wooden 19th-century warship with armoured plating

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

ironclad
(adj.) of warships, 1852, Amer.Eng., from iron + clad. As a noun meaning "iron-clad ship," it is attested from 1862). Of contracts, etc., 1884.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
They also knew that skeptics would demand ironclad proof in the form of
  photographs or recordings.
If some want to wait for ironclad data before pursuing their dreams, more power
  to them.
Keynotes have an absolute ironclad duty to not suck.
At no stage of the game did they suggest that their interpretation was ironclad.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;