Difficult series Synonyms

Difficult replaced

Definitions for Difficult


  • (adjective) requiring considerable physical or mental effort
  • (adjective) requiring exceptional skill or caution in performance or handling
  • (adjective) not easy ; requiring great physical or mental effort to accomplish or comprehend or endure

Synonyms for phrase

DS abbreviation

DS is an abbreviation for Difficult Series
What does DS stand for?
DS stands for "Difficult Series"

Series replaced

Definitions for Series


  • (noun) similar things placed in order or happening one after another
  • (noun) a group of postage stamps having a common theme or a group of coins or currency selected as a group for study or collection
  • (noun) (mathematics) the sum of a finite or infinite sequence of expressions