everlasting vs incessant

everlasting

adj
  • Lasting or enduring forever; existing or continuing without end 

  • Existing with infinite temporal duration (as opposed to existence outside of time). 

  • Continuing indefinitely, or during a long period; perpetual; sometimes used, colloquially, as a strong intensive. 

adv
  • Extremely. 

noun
  • A durable cloth fabric for shoes, etc. 

  • An everlasting flower. 

incessant

adj
  • Without pause or stop; not ending, especially to the point of annoyance. 

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