| Subject | English | Russian |
| gen. | untapped source | нетронутый источник (DC) |
| gen. | untapped source | непочатый источник (DC) |
| busin. | untapped source of investment | нетронутый источник инвестиций (напр, one largely untapped source of investment is the savings Russians notoriously keep under mattresses Olga Okuneva) |