Antonyms of adj uneconomical

2 senses of uneconomical

Sense 1
uneconomical, 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")

INDIRECT (VIA inefficient) -> efficient -- (being effective without wasting time or effort or expense; "an efficient production manager"; "efficient engines save gas")

Sense 2
uneconomical, uneconomic -- (wasteful of resources)

INDIRECT (VIA wasteful) -> thrifty -- (careful and diligent in the use of resources)

Similarity of adj uneconomical

2 senses of uneconomical

Sense 1
uneconomical, 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")
       => inefficient (vs. efficient) -- (not producing desired results; wasteful; "an inefficient campaign against drugs"; "outdated and inefficient design and methods")

Sense 2
uneconomical, uneconomic -- (wasteful of resources)
       => wasteful (vs. thrifty) -- (tending to squander and waste)