concrete vs immaterial

concrete

adj
  • Being or applying to actual things, not abstract qualities or categories. 

  • Made of concrete, a building material. 

  • Real, actual, tangible. 

  • Particular, specific, rather than general. 

  • United by coalescence of separate particles, or liquid, into one mass or solid. 

verb
  • To solidify: to change from being abstract to being concrete (actual, real). 

  • To cover with or encase in concrete (building material). 

noun
  • An extract of herbal materials that has a semi-solid consistency, especially when such materials are partly aromatic. 

  • Specifically, a building material created by mixing cement, water, and aggregate such as gravel and sand. 

  • Sugar boiled down from cane juice to a solid mass. 

  • A dessert of frozen custard with various toppings. 

  • A term designating both a quality and the subject in which it exists; a concrete term. 

immaterial

adj
  • So insubstantial as to be irrelevant. 

  • Having no matter or substance. 

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