Serious day 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

SD abbreviation

SD is an abbreviation for Serious Day
What does SD stand for?
SD stands for "Serious Day"

Day replaced

Definitions for Day


  • (noun) the hours of light between one night and the next
  • (noun) an extent of time associated with a particular person or thing
  • (noun) the first appearance of light in the morning or the time of its appearance