lightweight vs shallow

lightweight

adj
  • Lacking in earnestness, ability, or profundity 

  • Having less than average weight 

  • Lacking in strength 

  • Having a small footprint or performance impact 

verb
  • To reduce the amount or weight of. 

noun
  • A political candidate with little chance of winning 

  • A particular weight category as prescribed by the rules, separate from an open or heavyweight class. 

  • A particular weight class, or member of such, as prescribed by the rules, between that of the heavier welterweight and the lighter featherweight. See Wikipedia for the specifics of each sport. 

  • A competitive weight division as prescribed by the rules, between the heavier middleweight and the lighter featherweight. 

  • One of little consequence or ability. 

  • A person who cannot handle their drink; one who gets drunk on very little alcohol. 

  • A person with low endurance. 

shallow

adj
  • Lacking interest or substance. 

  • 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. 

noun
  • A costermonger's barrow. 

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

  • A fish, the rudd. 

verb
  • To make or become less deep. 

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