A slow learner
Meanings of "A slow learner"
As an expression it refers to someone who repeats the same mistakes, erroneous ways in life over and over knowing what are, or could be the results of their actions. This is applicable to both children, and adults.
In its literal sense it refers to someone who has a limited mental capacity.
κάποιος που μαθαίνει αργά
Тот, кого жизнь ничему не учит, тупой
Alguien que aprender lentamente las cosas o a su ritmo.