1. Inefficient in use of time and effort and materials
   "uneconomical ebb and flow of power"
   - wasteful 
2. Wasteful of resources
   - uneconomic

See also: inefficient, wasteful

• atone
• atonement
• atonia
• atonic
• atonicity
• atony
• atop
• atopic
• atopic allergy
• atopic dermatitis
• atopic eczema
• atopognosia
• atopognosis
• atopy
• atorvastatin
• atoxic
• ATP
• atrabilious
• choc
• choc-ice
• chocaholic
• choccy
• chock
• chock up
• chock-full