at a loss
Below cost, as in The store was doing so badly that it was selling merchandise at a loss.
Puzzled, perplexed, in a state of uncertainty, as in When his letters were returned unopened, John was at a loss as to what to do next. This usage was originally applied to hounds who had lost the scent or track of their prey. [Mid-1600s]
at a loss for words. Unable or uncertain as to what to say. For example, Father's tirade left us all at a loss for words. [Late 1600s]
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Words nearby at a loss
Example sentences from the Web for at a loss
ROME — What does it take for a Hollywood A-lister to get a private audience with Pope Francis?Pope Francis Has the Pleasure of Meeting Angelina Jolie for a Few Seconds|Barbie Latza Nadeau|January 8, 2015|DAILY BEAST
How do you celebrate when happy occasions are colored by loss and absence?
One topic that comes up among the members, she says, is dealing with loss years later.
To look at her in tears was to behold the enormity of her loss.
The fact that he was celebrating another loss for the star-crossed city of Detroit only enhances the symbolism.
There was no doubt thought of his own loss in this question: yet there was, one may hope, a germ of solicitude for the mother too.Children's Ways|James Sully
Now-a-days it is the bankrupt who flouts, and his too confiding creditors who are jeered and laughed at.Glances at Europe|Horace Greeley
But if what I told him were true, he was still at a loss how a kingdom could run out of its estate like a private person.Gulliver's Travels|Jonathan Swift
He felt himself the meanest, vilest thing a-crawl upon this sinful earth, and she—dear God!St. Martin's Summer|Rafael Sabatini
Hence arise factions, dissensions, and loss to their religious interests and work; and these intruders seek to rule the others.