1. In an amateurish manner
   "he performed the piece amateurishly"
   - unprofessionally

Antonym: expertly

• armless
• armlet
• armlike
• armload
• armoire
• armor
• armor plate
• armor plating
• armor-bearer
• armor-clad
• armor-plated
• Armoracia
• Armoracia rusticana
• armored
• armored car
• armored catfish
• armored combat vehicle
• armored dinosaur
• armored personnel carrier
• armored scale
• armored sea robin
• armored vehicle
• armorer
• armorial
• armorial bearing