1. With ineptitude; in an incompetent manner
   - ineptly 
2. In a feckless manner; irresponsibly and incompetently

See also: feckless

• complex instruction set computing
• complex number
• complex quantity
• complex sentence
• complexifier
• complexify
• complexion
• complexional
• complexity
• complexly
• complexness
• compliance
• compliancy
• compliant
• compliantly
• complicacy
• complicate
• complicated
• complicatedness
• complication
• complicit
• complicity
• complier
• compliment
• complimentary