fat vs substantial

fat

adj
  • Abounding in riches; affluent; fortunate. 

  • Carrying more fat than usual on one's body; plump; not lean or thin. 

  • Bountiful. 

  • Fertile; productive. 

  • Thick; large. 

  • Of a role: significant; major; meaty. 

  • Rich; producing a large income; desirable. 

  • Oily; greasy; unctuous; rich (said of food). 

  • Being a shot in which the ground is struck before the ball. 

  • Bulbous; rotund. 

noun
  • Such tissue as food: the fatty portion of (or trimmings from) meat cuts. 

  • A specialized animal tissue with high lipid content, used for long-term storage of energy: fat tissue. 

  • That part of an organization deemed wasteful. 

  • A fat person. 

  • The best or richest productions; the best part. 

  • A lipid that is solid at room temperature, which fat tissue contains and which is also found in the blood circulation; sometimes, a refined substance chemically resembling such naturally occurring lipids. 

  • An erection. 

  • A beef cattle fattened for sale. 

  • A poorly played shot where the ball is struck by the top part of the club head. (see also thin, shank, toe) 

substantial

adj
  • Possessed of goods or an estate; moderately wealthy. 

  • Most important; essential. 

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

  • Having a substance; actually existing. 

  • Corporeal; material; firm. 

  • 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 fat and substantial occurred in a corpus of books? (source: Google Ngram Viewer )