minimum vs substantial

minimum

noun
  • The smallest amount. 

  • He always tries to get away with doing the minimum. 

  • The lowest limit. 

  • A period of minimum brightness or energy intensity (of a star). 

  • The smallest member of a batch or sample or the lower bound of a probability distribution. 

  • A lower bound of a set which is also an element of that set. 

adj
  • To the lowest degree. 

substantial

adj
  • Most important; essential. 

  • Not imaginary; real; actual; true; veritable. 

  • Having a substance; actually existing. 

  • Corporeal; material; firm. 

  • Possessed of goods or an estate; moderately wealthy. 

  • Satisfying; having sufficient substance to be nourishing or filling. 

  • Large in size, quantity, or value; ample; significant. 

  • Having good substance; strong; stout; solid; firm. 

noun
  • Anything having substance; an essential part. 

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