Serious fatigue Synonyms

Serious replaced

Definitions for Serious


  • (adjective) not joking or playful in mood or manner
  • (adjective) having a matter of importance as its topic
  • (adjective) involving potential loss or injury

Synonyms for phrase

SF abbreviation

SF is an abbreviation for Serious Fatigue
What does SF stand for?
SF stands for "Serious Fatigue"

Fatigue replaced

Definitions for Fatigue


  • (verb) to use up all the physical energy of
  • (noun) a complete depletion of energy or strength
  • (noun) very hard or unpleasant work