Synonyms for Fast

Synonyms starting with letter S

• swift

  quick, speedy, hasty
• speedy

  quick, hasty, hurried
• stable

  quality, fixed, continue
• steadfast

  loyal, characteristic, close
• staunch

  close, fixed, stable
• secure

  fixed, quality, stable
• sound

  fixed, characteristic, loyal
• swiftly

  quickly, time, speedily
• speedily

  quickly, time
• steady

  quality, firm, stable
• strong

  firm, continue, resistant
• set

  property, fixed
• sharp

  agility, agile
• securely

  fixedly, firmly
• snappy

  speedy
• sure

  quality, continue
• short
• smart

  whirlwind
• stuck
• solid

  quality
• soon

  speedily
• sudden
• sturdy
• steadfastly

  fixedly, firmly
• stationary
• sporty

  immoral, fast-moving
• self-indulgent

  wild, immoral, dissipated
• soundly

  fixedly, sound
• starve

  go without food
• straightaway
• secured

  secure
• salacious

  immoral
• safe
• spanking

  nippy
• supersonic

  speedy, nippy
• stalwart

  close
• stiff

  stuck
• strongly
• snug
• snappily