What is the opposite of more efficient?

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Contexts (of a system) Opposite of comparative for capable of maximizing productivity at no expense of extra resources Opposite of comparative for able to produce results, or cause effects (attributive to a person) Opposite of comparative for having the ability to make prudent and careful decisions on the use of resources Adjective ▲ (of a system) Opposite of comparative for capable of maximizing productivity at no expense of extra resources more inefficient more disorganisedUK more disorganizedUS more inadequate more unsystematic more ineffective more confusing more disordered more disorderly more disjointed more muddled “Procedures that were set up to expose and correct dishonesty were themselves blocked or shown to be inefficient.” Adjective ▲ Opposite of comparative for able to produce results, or cause effects uselesser more ineffectual more unproductive more pointless more powerless more impotent more unavailing more futile more unfruitful more fruitless more helpless “To this end, ineffectual tools are usually worse than having no tools at all.” Adjective ▲ (attributive to a person) Opposite of comparative for having the ability to make prudent and careful decisions on the use of resources sloppier lazier clumsier more inefficient more incapable more inept more bungling more hopeless more inexpert more maladroit more unable more unapt more unproficient more unqualified more unskillful more unskilled more unbusinesslike more slipshod “He is either deliberately misconstruing the statement, or is utterly incompetent.” Find more words! 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Use our Antonym Finder Nearby Words more effortful more effortlessly more effulgent more effusive more egalitarian more eggheaded more efficacious more effete more effervescent more effeminate more effectual more effectively