wasteful

waste·ful  (wstfl)

adj.

Marked by or inclined to waste; extravagant.

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wasteful·ly adv.

wasteful·ness n.

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wasteful [ˈweɪstfʊl]

adj

1. tending to waste or squander; extravagant

2. causing waste, destruction, or devastation

wastefully  adv

wastefulness  n

Thesaurus

Adj.	1.	wasteful - inefficient in use of time and effort and materials; "a clumsy and wasteful process"; "wasteful duplication of effort"; "uneconomical ebb and flow of power" uneconomical inefficient - not producing desired results; wasteful; "an inefficient campaign against drugs"; "outdated and inefficient design and methods"
	2.	wasteful - tending to squander and waste         improvident - not provident; not providing for the future thrifty - careful and diligent in the use of resources
	3.	wasteful - laying waste; "when wasteful war shall statues overturn"- Shakespeare destructive - causing destruction or much damage; "a policy that is destructive to the economy"; "destructive criticism"

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wasteful

adjective extravagant, lavish, prodigal, profligate, ruinous, spendthrift, uneconomical, improvident, unthrifty, thriftless the wasteful consumption of fuel
sparing, economical, provident, money-saving, frugal, thrifty, parsimonious, penny-wise

Translations

wasteful [ˈweɪstfʊl] ADJ [person] → despilfarrador, derrochador; [process, method] → antieconómico; [expenditure] → pródigo, excesivo
to be wasteful with sth → despilfarrar algo, desperdiciar algo
the government is wasteful of taxpayers' money → el gobierno despilfarra or derrocha los impuestos de los contribuyentes
war is wasteful of human lives → la guerra supone un desperdicio de vidas humanas

wasteful [ˈweɪstfʊl] adj [person] → qui gaspille; [process] → peu économique
Try to avoid wasteful duplication of effort
BUT Essayez d'éviter de répéter inutilement les efforts.
don't be wasteful → ne gaspille pas
to be wasteful of sth → gaspiller qch
British houses are notoriously wasteful of energy
BUT Les maisons britanniques sont notoires pour les gaspillages d'énergie qu'elles occasionnent.

wasteful

adj → verschwenderisch; method, process → aufwendig, aufwändig, unwirtschaftlich; expenditure → unnütz; leaving all the lights on is a wasteful habit → es ist Verschwendung, überall Licht brennen zu lassen; to be wasteful with something → verschwenderisch mit etw umgehen; it is wasteful of effort → es ist unnötiger Aufwand; this project is wasteful of our resources → dieses Projekt ist eine unnütze Vergeudung unserer Ressourcen

wasteful [ˈweɪstfʊl] adj (person) → sprecone/a; (process) → dispendioso/a
to be wasteful with or of sth → sprecare qc