evergreen vs timeless

evergreen

adj
  • Suitable for transmission at any time; not urgent or time-dependent. 

  • Being a clause which causes an automatic renewal of a contract unless action is taken. 

  • Of a document, a piece of software, or a dataset, being continually up-to-date (as opposed to being published at regular intervals and outdated in the meantime) 

  • Of plants, especially trees, that do not shed their leaves seasonally. 

verb
  • To extend the term of a patent beyond the normal legal limit, usually through repeated small modifications. 

  • To set the repayment rate of a loan at or below the interest rate, so low that the principal will never be repaid. 

noun
  • A shrub or tree that does not shed its leaves or needles seasonally. 

  • A conifer tree. 

  • A news story that can be published or broadcast at any time. 

timeless

adj
  • Not decreasing over time in quality and appeal. 

  • Eternal. 

  • Not affected by time; ageless. 

noun
  • A gene encoding an essential protein that regulates circadian rhythm, normally written in italics: timeless. 

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