1. Not methodically or according to plan
   "he dealt with his course work casually" 
2. In an unconcerned manner
   "glanced casually at the headlines"
   - nonchalantly

See also: casual

• fragility
• fragment
• fragmental
• fragmentary
• fragmentation
• fragmentation bomb
• fragmented
• fragmentise
• fragmentize
• Fragonard
• fragrance
• fragrancy
• fragrant
• fragrant agrimony
• fragrant bedstraw
• fragrant cliff fern
• fragrant orchid
• fragrant shield fern
• fragrant sumac
• fragrant water lily
• fragrant wood fern
• fragrant woodsia
• fragrantly
• frail
• frailly