gibberish vs quiet

gibberish

adj
  • unintelligible, incoherent or meaningless 

noun
  • Needlessly obscure or overly technical language. 

  • Speech or writing that is unintelligible, incoherent or meaningless. 

  • A language game, comparable to pig Latin, in which one inserts a nonsense syllable before the first vowel in each syllable of a word. 

quiet

adj
  • Not showy; undemonstrative. 

  • Not busy, of low quantity. 

  • Not talking much or not talking loudly; reserved. 

  • With little or no sound; free of disturbing noise. 

  • Requiring little or no interaction. 

  • Having little motion or activity; calm. 

verb
  • To become quiet or calm. 

  • To cause (someone or something) to become quiet. 

noun
  • The absence of sound; quietness. 

  • The absence of movement; stillness, tranquility. 

  • The absence of disturbance or trouble; peace, security. 

intj
  • Be quiet. 

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