Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
shady [ˈʃeɪdɪ] adj (place, trees) тени́стый/тени́ст (fig, dishonest) тёмный*тёмен
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: