A headache unaccompanied by other symptoms.    From Wordnet, Princeton University. 

The soloist sang unaccompanied.    From Wordnet, Princeton University. 

Of those, 735 were defined as unaccompanied, out of the custody of their parents or legal guardians.    From Wordnik.com.  [Boston.com Top Stories] Reference

They are referred to as unaccompanied children, as there is little or no way to confirm the deaths of their families.    From Wordnik.com. Reference

Masturbation has always been practised by him as a purely physical act, unaccompanied, that is to say, by any imaginative ideas.    From Wordnik.com.  [The Sexual Life of the Child] Reference

South Korea is currently an "unaccompanied" tour for U.S. troops, which means that they are barred from bringing their families with them.    From Wordnik.com.  [North Korea Has Confined] Reference

Australians, such as unaccompanied or abandoned minors and victims of physical or mental injury or illness, where all other means of assistance are exhausted.    From Wordnik.com.  [Media Release: Budget 2007-2008] Reference

Her follow-up begins five years and many dates later, with Juska still single, an "unaccompanied" woman looking for companionship and, yes, lots of sessions between the sheets.    From Wordnik.com.  [Archive 2006-07-01] Reference

As of Tuesday, 275 of those children, whom UNICEF calls "unaccompanied," are staying in those locations.    From Wordnik.com.  [Stars and Stripes] Reference

The Foreign and Commonwealth Office only allows its diplomats to work in the country unaccompanied, meaning partners, wives and children must remain behind in the UK.    From Wordnik.com.  [Top Stories - Google News] Reference

193 youth were identified as unaccompanied youth, unsheltered, living in a car, tent, under a bridge, etc.    From Wordnik.com.  [MailTribune.com Latest Headlines] Reference

Would Mitch Landrieu walk unaccompanied at night through the Seventh Ward?.    From Wordnik.com.  [TV SoundOff: Sunday Talking Heads] Reference

Evans recorded, unaccompanied and with others, for nearly two more decades.    From Wordnik.com.  [Emulating Bill Evans] Reference

(This is the first war in American history unaccompanied by a tax increase.).    From Wordnik.com.  [The McCain Scenario] Reference

In recent years, he's turned more and more to playing unaccompanied soprano.    From Wordnik.com.  [Sam Newsome: A Soprano Sax 'Soliloquy'] Reference

He never allows any man unaccompanied by another to enter a building on fire.    From Wordnik.com.  [Fire Prevention and Fire Extinction] Reference

Seated ahead of them, three unaccompanied minors traveling for the first time.    From Wordnik.com.  [Anat Shenker-Osorio: The Long Wait: What Legal Immigration Requires of Families] Reference

Well first of all, we don't check-in minors, certainly not unaccompanied minors.    From Wordnik.com.  [No More Check-In Lines?] Reference

But Madame Dacier's enthusiasm was real, and unaccompanied by pedantry or conceit.    From Wordnik.com.  [The International Magazine, Volume 2, No. 3, February, 1851] Reference

Because his mother was one of 11 children, however, the legacy was unaccompanied by fortune.    From Wordnik.com.  [THE SOLITARY SOLDIER] Reference

There was a little silence while the epicurean Mr. Watts consumed his oysters unaccompanied.    From Wordnik.com.  [The Heart of Arethusa] Reference

"If I had any evil intentions," said Marcellus, "do you think I would go down unaccompanied?".    From Wordnik.com.  [The Martyr of the Catacombs A Tale of Ancient Rome] Reference

As a precaution, Conner posted someone at the door to make sure no unaccompanied kids slipped in.    From Wordnik.com.  [D.C. artist puts people on a boat in the buff, concerned neighbor calls cops] Reference

I started unaccompanied the following afternoon at 2: 30 o'clock on a one hundred fifty mile ride.    From Wordnik.com.  [Dangers of the Trail in 1865 A Narrative of Actual Events] Reference

This is the office of "other operations of mind," not unaccompanied, however, with acts of reasoning.    From Wordnik.com.  [Blackwood's Edinburgh Magazine, No. CCCXXXVI. October, 1843. Vol. LIV.] Reference

Now another long suspension is likely in the wake of this confession, one unaccompanied by any regret.    From Wordnik.com.  [Enough With The Strike Already] Reference

The government intervened a few weeks ago and removed more than 50 unaccompanied minors, but many remain.    From Wordnik.com.  [South African Church Housing Refugees Faces Crisis] Reference

Strange to say, however, the catastrophe itself was unaccompanied by underground noises any where near the volcano.    From Wordnik.com.  [Wonders of Creation] Reference

He agreed to share them with a NEWSWEEK correspondent last week -- as long as the visitor came unaccompanied by a woman.    From Wordnik.com.  [Flames Of Faith] Reference

Plus an archaic unaccompanied fiddle duet, and a harmonica solo showing the humbler instrument's kinship to the accordion.    From Wordnik.com.  [Meanwhile, Back In Cajun Country] Reference

Nor, it might be added, are moral ambitions, unaccompanied by a willingness to sacrifice, likely to be realized very often.    From Wordnik.com.  [A Just War Is Still A War] Reference

In Chicago, there had been a scheduling problem and it was the airline's fault that Mr. Soofi's luggage went unaccompanied.    From Wordnik.com.  [Dutch Release Two Yemeni Men] Reference

This fact established that, with respect to a queen-consort, a coronation was an honorary ceremony, unaccompanied by any acts.    From Wordnik.com.  [Coronation Anecdotes] Reference

Barely six, he wasn't allowed to change planes unaccompanied, so his parents would have to go and collect him in San Francisco.    From Wordnik.com.  ['A Free Life'] Reference

Mountain Man reminds us that nothing else is needed but the right combination of unaccompanied voices to make something that sounds timeless.    From Wordnik.com.  [Review of Mountain Man's album ‘Made the Harbor'] Reference

The study, published last week in The Journal of the American Medical Association, looked at 616 unaccompanied laboring women at a public hospital in Texas.    From Wordnik.com.  [Love's Labor Lessened] Reference

(At a time when so many people one knows are dying young -- unaccompanied by violins and lush, seaside settings -- the genre itself flirts with a certain obscenity.).    From Wordnik.com.  [Pretty Woman Does A Weepie] Reference