ponderous russian

• вы́мученный

  forced, laborious, laboured, ponderous

• тяжелове́сный

  heavy, heavily-laden, heavily-loaded, ponderous

• отяжеле́ть

  to grow heavy, to become heavy, to get heavier

  to become sluggish, to grow ponderous, to become clumsy

• гру́зность

  ponderousness, heaviness (of build), corpulence, clumsiness

  heaviness, massiveness, unwieldiness

Examples

• Тюле́ни неуклю́жи и неповоро́тливы на земле́, но очень грацио́зны в воде.

  Seals are clumsy and ponderous on land, but very graceful in the water.