Faced a case-hardened judge.    From Wordnet, Princeton University. 

hardened fishermen.    From Wordnet, Princeton University. 

hardened missile silos.    From Wordnet, Princeton University. 

Adjective : a hardened criminal. ,a hardened trooper. ,a hardened attitude.    From Dictionary.com. 

Playfair frowned and his expression hardened just a mite.    From Wordnik.com.  [Black Butterfly] Reference

Then her expression hardened and she strode after Fandral as if about to rush off to war.    From Wordnik.com.  [WORLD OF WARCRAFT STORMRAGE] Reference

Red light played over his features as his expression hardened.    From Wordnik.com.  [Web of the Romulans] Reference

For a moment I thought he was going to relent, but then his expression hardened.    From Wordnik.com.  [The Human Bobby] Reference

Nevertheless, he hated these damned reports, and as he wrote his expression hardened.    From Wordnik.com.  [The Blackstone Key] Reference

His expression hardened from mere flint to granite.    From Wordnik.com.  [A Lady of Expectations]

Her expression hardened and she shouted at him angrily.    From Wordnik.com.  [Maigret Hesitates]

Caramon gasped, then his expression hardened into a scowl.    From Wordnik.com.  [Dragons of Spring Dawning]

When she too noticed Lara, her expression hardened with malice.    From Wordnik.com.  [Where There's Smoke]

His expression hardened, and yet became sorrowful at the same time.    From Wordnik.com.  [The Robin And The Kestrel]

His expression hardened, but relaxed again when he heard the request.    From Wordnik.com.  [Drums of Autumn]

The tears in Sally Carrol's eyes faded; her expression hardened slightly.    From Wordnik.com.  [Flappers and Philosophers] Reference

Her expression hardened and something very like hatred shone in her eyes.    From Wordnik.com.  [Renegade's Magic]

His expression hardened, the line of his mouth thinning with his patience.    From Wordnik.com.  [The Master Fiddler]

As she ceased, the expression hardened into a settled and compulsive resolution.    From Wordnik.com.  [Paul Clifford — Complete] Reference

She gave a start, then her expression hardened, and she began berating him with coarse vigor.    From Wordnik.com.  [Maigret In Exile]

His expression hardened as he pictured her smiling at Vernier, as once she had smiled for him.    From Wordnik.com.  [Sepulchre]

His expression hardened into a determined jaw-clenching sneer, and looking down, continued past.    From Wordnik.com.  [Steven Weber: For My Father 10/3/25 - 3/6/87] Reference

I am hardened, which is why my vices cost me a fortune.    From Wordnik.com.  [The Earth Book of Stormgate]

Khatamis expression hardened into one of cold contempt.    From Wordnik.com.  [Reap the Whirlwind] Reference

Verman's expression hardened; he shook his head decisively.    From Wordnik.com.  [Penrod and Sam] Reference

Louise's expression hardened, but she didn't say any­thing.    From Wordnik.com.  [Disordered Minds]

Faure's expression hardened once he heard the lieutenant's words.    From Wordnik.com.  [Moonwar]

The surgeon's expression hardened as the Citizen's presence abated.    From Wordnik.com.  [Split Infinity]

Richard's expression hardened with the implied menace of his words.    From Wordnik.com.  [Men Don't Leave Me] Reference

The boy's expression hardened at hearing his act described as foolish.    From Wordnik.com.  [Dragonfly in Amber]

The tears in Sally Carrol’s eyes faded; her expression hardened slightly.    From Wordnik.com.  [Flappers and Philosophers] Reference

Pony's expression hardened into a sneer, but Dasslerond continued undeterred.    From Wordnik.com.  [Mortalis]

Ideally, all modern electronics ought to be EMP hardened, which is not possible.    From Wordnik.com.  [DK Matai: Could Super Solar Flares Take Us Back To 5000 BC?] Reference

"You -" Vanyel's expression hardened still more, and he drew himself up, stiffly.    From Wordnik.com.  [Magic's Price]

Then his expression hardened.    From Wordnik.com.  [The Mistaken Wife] Reference

His expression hardened, his eyes narrowed.    From Wordnik.com.  [Mending Places] Reference

And it kind of hardened feelings around -- or against Hillary Clinton's campaign.    From Wordnik.com.  [CNN Transcript Jun 2, 2008] Reference

And I should be "hardened" to it, after all, I'm Intersexed in a spectacular way.    From Wordnik.com.  [A Letter to Ms Divine] Reference

QUESTION: Could they be in the kind of hardened bunkers that we've seen in past conflicts?.    From Wordnik.com.  [CNN Transcript Oct 15, 2001] Reference

In other words, not a "hardened" compound at all, certainly nothing resembling a military bunker.    From Wordnik.com.  [Pro-life beliefs] Reference

Clinton can't criticize Obama without being labeled some kind of hardened, success-grabbing woman.    From Wordnik.com.  [Kathleen Reardon: What Happened To "Nice Guys Finish Last"?] Reference