Serious doubt 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 Doubt
What does SD stand for?
SD stands for "Serious Doubt"

Doubt replaced

Definitions for Doubt


  • (noun) a feeling or attitude that one does not know the truth, truthfulness, or trustworthiness of someone or something
  • (verb) to have no trust or confidence in
  • (noun) the state of being unsure of something