minimal vs ultrasmall

minimal

adj
  • The smallest possible amount, quantity, or degree. 

  • Characterised by the use of simple form or structures. 

  • Characterised by the repetition and gradual alteration of short phrases. 

noun
  • Something very small; a tiny part or fragment. 

ultrasmall

adj
  • Extremely or exceedingly small 

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