senil russian

• ста́рческий

  senile

• ста́рчески

  like an old man, in a senile way, doddering

• маразма́тик

  senile person, dotard

  moron, idiot, old fool

• дря́хлость

  decrepitude, senile infirmity

• ста́рчество

  old age, senility, dotage

  eldership, spiritual guidance by an elder, staretzdom

• полоу́мие

  feeble-mindedness, dementia, senility, dotage

• одряхле́вший

  decrepit, senile, infirm, superannuated

  dilapidated, ramshackle, rickety, worn out

Examples

• Он одряхле́л.

  He's gone senile.

• Дед идёт со старческой походкой по двору.

  Grandpa walks across the yard with a senile gait.

• Врач заметил у пациента старческий склероз.

  The doctor noticed senile dementia in the patient.

• У старика начиналось старческое слабоумие.

  The old man was beginning to develop senile dementia.

• Не спорь с ним, он старый маразматик.

  Don't argue with him; he's an old senile fool.

• Полоумие деда пугало всю семью.

  The grandfather’s senility frightened the whole family.