single-handedly

alternative singlehandedly

1. not comparableAlone; without assistance; by oneself.

   She single-handedly organized the whole event, and even set up all the chairs herself.

   2 more examples

   Charlie Chaplin, the poignant little tramp with the cane and comic walk who almost single — handedly elevated the novelty entertainment medium of motion pictures into art, died peacefully yesterday at his home in Switzerland[…]

   1977 December 26, “Charlie Chaplin Dead at 88; Made the Film an Art Form”, in The New York Times

   “Despite the surge in prices weighing on their purchasing power, the U.S. consumer now appears to be single-handedly keeping the global economy afloat,” Paul Ashworth, an economist at Capital Economics, wrote in a note.

   2022 May 17, Coral Murphy Marcos, “Retail sales rise for the fourth straight month as prices keep climbing.”, in The New York Times

   Synonyms: alone, by oneself, by one's lonesome, on one's lonesome, on one's own, single-handed, singly, unaidedly