The food for man and dog was reduced, and the difficulties of ice travel increased dishearteningly.
"My Attainment of the Pole"
Frederick A. Cook
The mystery seemed to grow more tangled and intricate with every passing hour, and he felt that, so far, his progress had been dishearteningly slow.
"The Gray Phantom's Return"
Herman Landon
But progress was dishearteningly slow.
"Our Nervous Friends Illustrating the Mastery of Nervousness"
Robert S. Carroll