glib vs monotonic

glib

adj
  • Having a ready flow of words but lacking thought or understanding; superficial; shallow. 

  • Snarky or unserious in a disrespectful way. 

  • Artfully persuasive but insincere in nature; smooth-talking, honey-tongued, silver-tongued. 

verb
  • To make smooth or slippery. 

noun
  • A mass of matted hair worn down over the eyes, formerly used in Ireland. 

monotonic

adj
  • Uttered in a monotone; monotonous. 

  • said of a function that either never decreases or never increases as its independent variable increases. 

  • of or using the Greek system of diacritics which discards the breathings and employs a single accent to indicate stress. It replaced polytonic system in 1982. 

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