ве́тхость

nounfeminineinanimateuncountablevery rarely used (#35349)noun in -ь

1.
dilapidation, state of disrepair, decrepitude
Дом снесли из-за ве́тхости.
The house was demolished because of its dilapidation.
Most often of buildings, but also of clothes, books and other worn-out objects.
2.
(rare) decrepitude, frailty, infirmity
Ве́тхость не позволяла старику выходить из дома.
Frailty kept the old man from leaving the house.
Of a person; bookish.

Examples

Дом поразил всех своей ветхостью.
The house astonished everyone with its dilapidated condition.
Из-за ветхости мост скоро закроют.
The bridge will soon be closed because of its dilapidated condition.
Ветхость здания заметна с первого взгляда.
The building's dilapidation is apparent at first glance.