бесполезный
inutilis [e]; frustraneus [a, um]; supervacaneus [a, um] (litterae; oratio) [a, um]; supervacuus [a, um] (praecepta dare scienti supervacuum est); superforaneus [a, um] (labor; superforaneum aliquid putare); infructuosus [a, um]; inanis [a, um]; vanus [a, um]; immunis [e] (fucus; facinus); ignavus [a, um] (nemus; mora); otiosus [a, um]; superfluus [a, um]; sterilis [e] (labor);
+ быть бесполезным nulli usui esse, nihil prodesse; nihil afferre ad aliquid;
+ бесполезный труд labor irritus;