agonizing

[ ag-uh-nahy-zing ]

/ ˈæg əˌnaɪ zɪŋ /

accompanied by, filled with, or resulting in agony or distress: We spent an agonizing hour waiting to hear if the accident had been serious or not.

RELATED WORDS

First recorded in 1660–70; agonize + -ing²

ag·o·niz·ing·ly, adverb

The latest opinion polls suggest it will be agonizingly close.
Scots Must Choose Heart or Head|Nico Hines|September 18, 2014|DAILY BEAST
Heartsick, depressed, agonizingly lonely, she would disappear for days behind her locked bedroom doors.
New Questions Arise About Mary Richardson Kennedy’s Suicide|Nancy Collins|May 16, 2013|DAILY BEAST
Were the features against which that frail bit of cambric was agonizingly pressed of a pleasing contour?
Seven Keys to Baldpate|Earl Derr Biggers
It was as if someone had prodded him in an agonizingly sore place and he reacted instinctively.
The Black Tide|Arthur G. Stangland

Not able even to stand alone, awkwardly, agonizingly unable to mount his restive horse, his life was yet so strong within him!
Jackanapes|Juliana Horatio Ewing
An agonizingly long time later the faint and disregarded sound of the plane swept back across the heavens.
Operation Terror|William Fitzgerald Jenkins
A glance told him it was empty; but he felt with his hands in all the dim corners, agonizingly whispering her name.
Two on the Trail|Hulbert Footner