nonsuperimposable
adjective
non·su·per·im·pos·able ˌnän-ˌsü-pər-im-ˈpō-zə-bəl 
: not capable of being superimposed : not superimposable
nonsuperimposable mirror images
especially : chiral
nonsuperimposable molecules
Word History
First Known Use
1890, in the meaning defined above
- knockout drops
- knockouter
- knockoutest
- knockouts
- knockoutter
- knockouttest
- knocks
- knocks (about)
- knocks (someone) off his/her pedestal
- knocks about
- knocks back
- knocks dead
- knocks down
- knocks for a loop
- knocks in
- knocks off
- knocks off her pedestal
- knocks off his pedestal
- knocks one's socks off
- knocks out
- knocks over
- knocks silly
- knocks someone off her pedestal
- knocks someone off his pedestal
- knocks together