Challenging material Synonyms

Challenging replaced

Definitions for Challenging


  • (adjective) requiring considerable physical or mental effort
  • (adjective) requiring much time, effort, or careful attention
  • (adjective) requiring full use of your abilities or resources

Synonyms for phrase

CM abbreviation

CM is an abbreviation for Challenging Material
What does CM stand for?
CM stands for "Challenging Material"

Definitions for Material


  • (adjective) relating to or composed of matter
  • (adjective) having great meaning or lasting effect
  • (adjective) having to do with life on earth especially as opposed to that in heaven