скользкий
lubricus [a, um];
настойчиво
pertinaciter;
constanter;
firme;
неучтиво
inhumaniter;
inurbane;
stomachosus [a, um]; morosus [a, um]; difficilis [e]; rixosus [a, um]; insulsus [a, um]; ineptus [a, um]; absurdus [a, um] ; infrunitus [a, um] (animus; mulier; copia);