Russian ⇄ English

ни вздумать, ни взгадать, ни пером описать stresses
folk., poetic	beyond imagination; difficult to describe; difficult to imagine; indescribable
Gruzovik, poetic	indescribable (of something beautiful, difficult, etc.); beyond imagination (of something beautiful, difficult, etc.); difficult to describe (of something beautiful, difficult, etc.); difficult to imagine (of something beautiful, difficult, etc.)