bleak2Pronunciation: /bliːk/Translate bleak | into French | into German | into Italian | into Spanish Definition of bleak noun a small silvery shoaling fish of the carp family, found in Eurasian rivers. Genera Alburnus and Chalcalburnus, family Cyprinidae: several species, in particular A. alburnus Origin: late 15th century: from Old Norse bleikjableak in other Oxford dictionaries Definition of bleak in the US English dictionary