The word "un-economical" implies that something is inefficient or wasteful. Antonyms for this term could be "efficient," "thrifty," "cost-effective," or "frugal." These terms suggest that something is useful and practical, without being wasteful or needlessly expensive. When it comes to products or services, customers often prefer economical options that provide the most value for their money. In contrast, things that are un-economical are often seen as impractical, unnecessary, or even harmful. By considering antonyms for the word "un-economical," we can better understand what characteristics people desire in products and services, and how to meet their needs in a more effective and cost-efficient way.