An unacknowledged emergency.    From Wordnet, Princeton University. 

How many more servicemen were captured by the enemy and remain unacknowledged?.    From Wordnik.com.  [19 New POW Cases] Reference

Shelley’s ‘unacknowledged legislators‘ remain unacknowledged.    From Wordnik.com.  [Something concrete « Squares of Wheat] Reference

With the kind of unacknowledged advocacy that Ed Week engages in regularly, who needs an editorial page!.    From Wordnik.com.  [Archive 2008-02-01] Reference

Nor is the fault in humanity at large: for love and faith have leapt forth profusely in the olden time, at the summons of "unacknowledged,".    From Wordnik.com.  [A Handbook to the Works of Browning (6th ed.)] Reference

A strange, unacknowledged depression assailed him.    From Wordnik.com.  [The Fifth Ace] Reference

Poets are the unacknowledged legislators of the world.    From Wordnik.com.  [English literary criticism] Reference

She was every unencouraged artist, every unacknowledged princess.    From Wordnik.com.  [Reality Bites] Reference

 The subject went unacknowledged until she brought it up one day.    From Wordnik.com.  [Old Egg] Reference

Yes, there'd been benefits but also "a huge unacknowledged downside.".    From Wordnik.com.  [Boris, Barking and the BNP] Reference

German language was either unknown to, or unacknowledged by the natives.    From Wordnik.com.  [A Tramp's Wallet stored by an English goldsmith during his wanderings in Germany and France] Reference

Mr Darcy's is a spirit that will never leave an obligation unacknowledged.    From Wordnik.com.  [The Ladies A Shining Constellation of Wit and Beauty] Reference

Thorvald that he realized just how deep his unacknowledged loneliness had bit.    From Wordnik.com.  [Storm Over Warlock] Reference

And yet -- and yet -- so brave a generosity shall not be wholly unacknowledged.    From Wordnik.com.  [The Atlantic Monthly, Volume 17, No. 102, April, 1866] Reference

Percy Bysshe Shelly said that poets are the unacknowledged legislators of the world.    From Wordnik.com.  [Ricks' Picks: Best Books About War In Iraq] Reference

His worn black coat and doubtful linen showed a poverty unacknowledged but profound.    From Wordnik.com.  [The French Immortals Series — Complete] Reference

The tone her daughter had used frightened her and she quivered with an unacknowledged fear.    From Wordnik.com.  [The Wind Before the Dawn] Reference

He grew up in a milieu of unspoken truths, unacknowledged complexities and hidden histories.    From Wordnik.com.  [On His Own] Reference

Three months after the election, the wounds aren't so much healed as stiffly unacknowledged.    From Wordnik.com.  [Homophobia] Reference

He is so earnest that in spite of herself a little unacknowledged comfort comes into her heart.    From Wordnik.com.  [Molly Bawn] Reference

There is also a non-medical legislator to whom Charleston owes a debt of unacknowledged gratitude.    From Wordnik.com.  [McClure's Magazine, Vol. XXXI, No. 3, July 1908.] Reference

Buying habits, those unacknowledged keys to our national character, have changed almost not at all.    From Wordnik.com.  [Six Months On, The Fog Of War] Reference

His boyhood had been passed, unknown and unacknowledged by his father, in a peasant household in Castille.    From Wordnik.com.  [Famous Sea Fights From Salamis to Tsu-Shima] Reference

There is first the case of the child born out of wedlock, often a foundling with parentage unacknowledged.    From Wordnik.com.  [Society Its Origin and Development] Reference

It was, naturally, a poet (Shelley) who declared that "poets are the unacknowledged legislators of the world.".    From Wordnik.com.  [Longfellow: A Founder] Reference

"The maternal instinct -- yes; it seems to be round that unacknowledged centre that the whole storm is raging.".    From Wordnik.com.  [The Daughters of Danaus] Reference

Venice, whose power was the unacknowledged core of bitterness in the growing disaffection among the Cyprian nobles.    From Wordnik.com.  [The Royal Pawn of Venice A Romance of Cyprus] Reference

It was an unacknowledged partnership, which often provided two opinions for the same price; the town prophesied well of it.    From Wordnik.com.  [The Imperialist] Reference

In 1820 Shelley could still hopefully proclaim “poets and philosophers are the unacknowledged legislators of the world.”.    From Wordnik.com.  [Can writers change the world? Richard Holmes and Jerry Pinkney respond] Reference

The translator omits the first part of the section and introduces us to the story with a few unacknowledged words of his own.    From Wordnik.com.  [Laurence Sterne in Germany A Contribution to the Study of the Literary Relations of England and Germany in the Eighteenth Century] Reference

Government of the United States remained unacknowledged in most of the States whose inhabitants had been involved in the rebellion.    From Wordnik.com.  [History of the Thirty-Ninth Congress of the United States] Reference

The Boss questioned the wisdom of the Tuscarora speech, and the fall widened the unacknowledged breach between him and the governor.    From Wordnik.com.  [The Henchman] Reference

He recognizes forces and factors of which he had been unconscious but whose value, long unacknowledged, he now gratefully can estimate.    From Wordnik.com.  [Christianity and Progress] Reference

Lind goes out of his way to make the generally unacknowledged point that Americans have sorted themselves out partly on religious lines.    From Wordnik.com.  [Sweet Land Of Liberties] Reference

Acceptance of a Nobel prize is an almost irresistible invitation to one of Shelley's unacknowledged legislators to do a bit of legislating.    From Wordnik.com.  [The Elephant's Journey by José Saramago] Reference

Lucas screams out plays and encouragement-no good move goes unacknowledged-and punctuates it all with a swirl of finger-pointing and arm-waving.    From Wordnik.com.  [Sinking A Long Shot] Reference