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

• PRC
• pre-
• pre-Christian
• pre-Columbian
• pre-contract
• pre-embryo
• pre-emptive strike
• pre-Jurassic
• pre-nup
• Pre-Raphaelite
• pre-soak
• preach
• preacher
• preacher man
• preachification
• preachify
• preaching
• preachment
• preachy
• preadolescent
• Preakness
• preamble
• preamplifier
• preanal
• prearrange