1. Done with very great haste and without due deliberation
   "rejected what was regarded as an overhasty plan for reconversion"
   - hasty, precipitate, precipitant, precipitous

See also: hurried

• fleur-de-lis
• fleur-de-lys
• flews
• flex
• Flexeril
• flexibility
• flexible
• flexible joint
• flexible sigmoidoscope
• flexible sigmoidoscopy
• flexibleness
• flexibly
• flexile
• flexion
• flexitime
• flexor
• flexor muscle
• flextime
• flexuous
• flexure
• flibbertigibbet
• flick
• flick-knife
• flicker
• flickering