Synonyms for Economical (same or very similar meaning)
WordNet sense 1 (of or relating to an economy, the system of production and management of material wealth):
economic
WordNet sense 2 (avoiding waste):
frugal, scotch, sparing, stinting
WordNet sense 3 (careful and diligent in the use of resources):
thrifty
WordNet sense 4 (being effective without wasting time or effort or expense):
efficient
From the ODE community, based on WordNet
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