nonselected
adjective
non·se·lect·ed ˌnän-sə-ˈlek-təd 
: not having been chosen or selected
No statistical significant differences in clinically relevant characteristics were found between the randomly selected and nonselected patients.
Annarita Carino et al.
Annarita Carino et al.
Word History
First Known Use
1838, in the meaning defined above