shallow vs thin

shallow

verb
  • To make or become less deep. 

noun
  • A costermonger's barrow. 

  • A shallow portion of an otherwise deep body of water. 

  • A fish, the rudd. 

adj
  • Not steep; close to horizontal. 

  • Not far forward, close to the net. 

  • Having little depth; significantly less deep than wide. 

  • Not intellectually deep; not penetrating deeply; simple; not wise or knowing. 

  • Concerned mainly with superficial matters. 

  • Extending not far downward. 

  • Lacking interest or substance. 

thin

verb
  • To make thin or thinner. 

  • To remove some plants or parts of plants in order to improve the growth of what remains. 

  • To dilute. 

  • To become thin or thinner. 

adv
  • Not thickly or closely; in a scattered state. 

adj
  • Scarce; not close, crowded, or numerous; not filling the space. 

  • Describing a poorly played golf shot where the ball is struck by the bottom part of the club head. See fat, shank, toe. 

  • Very narrow in all diameters; having a cross section that is small in all directions. 

  • Slight; small; slender; flimsy; superficial; inadequate; not sufficient for a covering. 

  • Of low viscosity or low specific gravity. 

  • Of a route: relatively little used. 

  • Poor; scanty; without money or success. 

  • Having little body fat or flesh; slim; slender; lean; gaunt. 

  • Having little thickness or extent from one surface to its opposite. 

  • Lacking body or volume; small; feeble; not full. 

noun
  • Any food produced or served in thin slices. 

  • A loss or tearing of paper from the back of a stamp, although not sufficient to create a complete hole. 

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