different vs nonidentical

different

adj
  • Not the same; exhibiting a difference. 

  • Distinct, separate; used for emphasis after numbers and other determiners of quantity. 

  • Various, assorted, diverse. 

  • Unlike most others; unusual. 

noun
  • The different ideal. 

adv
  • Differently. 

nonidentical

adj
  • Not identical; different in some respect. 

noun
  • A twin other than an identical twin. 

How often have the words different and nonidentical occurred in a corpus of books? (source: Google Ngram Viewer )