atypical vs patterned

atypical

noun

  • An atypical antipsychotic. 

adj

  • Unusual or irregular. 

  • Not conforming to the normal type. 

patterned

adj

  • Conformed to a pattern, a model to be followed. 

  • Supplied with a pattern 

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