in a single-handed manner; single-handed.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use single-handedly in a sentence
For years, William Schmidt single-handedly dug a tunnel through a mountain to transport his gold-rush loot.
Once a pampered princeling, Yarvi cannot single-handedly succeed (literally or figuratively) and so must become a leader.
Sure, it wouldn't be easy; even Bassam suffers some setbacks on his quest to single-handedly liberalize Abbudin.Generic and Superficial ‘Tyrant’ Amerisplains the Middle East | Andrew Romano | June 25, 2014 | THE DAILY BEAST
Marshall single-handedly reset our understanding of how ulcers are created, and won a Nobel Prize for his efforts.
Ulli single-handedly overturned the ruling several years ago.
To a large extent the criminals, single handedly, created a private sector in these derelict economies.After the Rain | Sam Vaknin