1. With intention; in an intentional manner
   - intentionally, designedly, on purpose, purposely, advisedly, by choice, by design 
2. In a deliberate unhurried manner
   "she was working deliberately"
   - measuredly

See also: deliberate

Antonym: accidentally

• outguess
• outgun
• outhaul
• outhouse
• outing
• outlander
• outlandish
• outlandishly
• outlandishness
• outlast
• outlaw
• outlawed
• outlawry
• outlay
• outlet
• outlet box
• outlier
• outline
• outlined
• outlive
• outlook
• outlying
• outmaneuver
• outmanoeuvre
• outmarch