one-handed
adjective
Definitions
Having only one hand.
Performed using only one hand.
Designed for use with one hand
That uses one hand.
adverb
Definitions
Using only one hand.
Example: She waved to us and lost her balance; riding a bicycle one-handed is tricky.
Very easily, without effort.
Example: He's a terrible snooker player. I could beat him one-handed!