hardened

[hahr-dnd]
adjective
1.
made or become hard or harder.
2.
pitiless; unfeeling.
3.
firmly established or unlikely to change; inveterate: a hardened criminal.
4.
inured; toughened: a hardened trooper.
5.
rigid; unyielding: a hardened attitude.
6.
(of a missile base) equipped to launch missiles from underground silos.
7.
(of a missile) capable of being launched from an underground silo.

Origin:
1325–75; Middle English; see harden, -ed2

semihardened, adjective
unhardened, adjective
well-hardened, adjective
Dictionary.com Unabridged

harden

[hahr-dn]
verb (used with object)
1.
to make hard or harder: to harden steel.
2.
to make pitiless or unfeeling: to harden one's heart.
3.
to make rigid or unyielding; stiffen: The rigors of poverty hardened his personality.
4.
to strengthen or confirm, especially with reference to character, intentions, feelings, etc.; reinforce.
5.
to make hardy, robust, or capable of endurance; toughen.
6.
Military. to reinforce the structure of (a military or strategic installation) to protect it from nuclear bombardment.
verb (used without object)
7.
to become hard or harder.
8.
to become pitiless or unfeeling.
9.
to become rigid or unyielding; stiffen: His personality hardened over the years.
10.
to become confirmed or strengthened: His resistance hardened.
11.
to become inured or toughened: The troops hardened under constant fire.
12.
Commerce.
a.
to cease to fluctuate; firm: When the speculators withdrew from the market, the prices hardened.
b.
to rise higher.

Origin:
1150–1200; Middle English; see hard, -en1

hardenable, adjective
hardenability, noun
overharden, verb
preharden, verb (used with object)
reharden, verb
unharden, verb (used with object)
unhardenable, adjective


1. solidify, indurate; petrify, ossify. 4. fortify, steel, brace, nerve.


1. soften. 4. weaken.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
harden1 (ˈhɑːdən)
 
vb
1.  to make or become hard or harder; freeze, stiffen, or set
2.  to make or become more hardy, tough, or unfeeling
3.  to make or become stronger or firmer: they hardened defences
4.  to make or become more resolute or set: hardened in his resolve
5.  (intr) commerce
 a.  (of prices, a market, etc) to cease to fluctuate
 b.  (of price) to rise higher

harden2 (ˈhɑːdən)
 
n
a rough fabric made from hards

hardened (ˈhɑːdənd)
 
adj
1.  rigidly set, as in a mode of behaviour
2.  toughened, as by custom; seasoned
3.  (of a nuclear missile site) constructed to withstand a nuclear attack

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
The hike into a several-hundred-year-old tunnel of hardened lava gives you an inside glimpse of a volcano's power.
It could imply that arthropods developed hardened limbs before hardened bodies, say the researchers.
What were once fluid and negotiable guidelines are hardened into a set of
  practices without any real reason behind them.
To hardened backpackers, this sort of well-trod vibe is sometimes considered a
  liability.
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