single-handed vs unassisted

single-handed

adj

  • Without help from others; unassisted. 

  • Using only one hand. 

  • Designed for only one hand. 

adv

  • In a single-handed manner. 

unassisted

adj

  • Not assisted; without assistance 

adv

  • Without assistance. 

How often have the words single-handed and unassisted occurred in a corpus of books? (source: Google Ngram Viewer )