Challenging frequent Synonyms

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

CF abbreviation

CF is an abbreviation for Challenging Frequent
What does CF stand for?
CF stands for "Challenging Frequent"

Frequent replaced

Definitions for Frequent


  • (adjective) appearing or occurring repeatedly from time to time
  • (adjective) often observed or encountered
  • (verb) to go to or spend time in often