ample vs deficient

ample

adj
  • Not contracted or brief; not concise; extended; diffusive 

  • Large; great in size, extent, capacity, or bulk; for example spacious, roomy or widely extended. 

det
  • A fully sufficient or abundant quantity of; enough or more than enough. 

  • A quantity (of something) that is fully sufficient; plenty. 

deficient

adj
  • Lacking something essential; often construed with in. 

  • Insufficient or inadequate in amount. 

  • Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n). 

noun
  • A person who is deficient. 

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