Synonyms for Subitaneous

Synonyms starting with letter S

• sudden

  acting without thinking, quick
• speedy

  quick
• spontaneous

  acting without thinking
• swift

  acting without thinking, quick, fast
• spur-of-the-moment

  acting without thinking
• short

  quick
• slapdash

  quick
• superficial
• spur of the moment
• spur-of-the moment
• snatched