empty vs shallow

empty

adj
  • Destitute of, or lacking, sense, knowledge, or courtesy. 

  • Containing no elements (as of a string, array, or set), opposed to being null (having no valid value). 

  • Not pregnant; not producing offspring when expected to do so during the breeding season. 

  • Destitute of reality, or real existence; unsubstantial. 

  • Unable to satisfy; hollow; vain. 

  • Destitute of effect, sincerity, or sense; said of language. 

  • Devoid of content; containing nothing or nobody; vacant. 

  • Having nothing to carry, emptyhanded; unburdened. 

verb
  • To make empty; to void; to remove the contents of. 

  • Of a river, duct, etc: to drain or flow toward an ultimate destination. 

noun
  • A container, especially a bottle, whose contents have been used up, leaving it empty. 

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. 

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. 

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