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

• regrow
• regrowth
• regular
• regular army
• regular convex polyhedron
• regular convex solid
• regular dodecahedron
• regular expression
• regular hexagon
• regular hexahedron
• regular icosahedron
• regular octahedron
• regular payment
• regular polygon
• regular polyhedron
• regular recurrence
• regular tetrahedron
• regularisation
• regularise
• regularity
• regularization
• regularize
• regularly
• regulate
• regulated