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

• -oholic
• -onym
• -opia
• -osis
• -pathy
• -phile
• -philiac
• -philous
• -phobe
• -phore
• -phyte
• -plast
• -plegia
• -ster
• -to-be
• .22 caliber
• .22 calibre
• .38-caliber
• .38-calibre
• .45-caliber
• .45-calibre
• 1 Chronicles
• 1 Esdras
• 1 Kings
• 1 Maccabees