| Subject | English | Russian |
| gen. | dull of apprehension | непонятный |
| obs. | dull of apprehension | туповатый (Anglophile) |
| obs. | dull of apprehension | непонятливый (The disciples seem to have been dull of apprehension in regard to the figurative language of our Lord. (1844) Anglophile) |
| obs. | dull of apprehension | туго соображающий (By what process of reasoning do you convict him of mala fides? He may have been dull of apprehension; he may have been hard to be convinced ; but obtuseness of intellect is not to be regarded as only another name for want of veracity. (1819)) |
| obs. | dull of apprehension | медленно соображающий (В.И.Макаров) |
| Makarov. | of dull apprehension | туповатый |
| Makarov. | of dull apprehension | непонятливый |