sickly russian

• нездоро́вый

  unhealthy, sickly, unwholesome, morbid

• хи́лый

  sickly, stunted, undergrown

• до́хлый

  dead, sickly, puny, weakly

• ча́хлый

  stunted, poor, wilted, sickly, puny, unhealthy-looking

• не́мощный

  infirm, sick, feeble, sickly

• слаща́вый

  sugary sickly-sweet attitude

• захире́ть

  grow sickly, wither, droop, fall into decay

• дохля́тина

  carrion, feeble, sickly person