An unsound state, as that of a building; dilapidation.(noun)
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Use "unrepair" in a sentence
"The man mentioned a figure, the comparative lowness of which seemed accounted for by the character of the neighbourhood and the abominable state of unrepair of the place."
"Learning all but disappeared; the useful arts were little cultivated; cities fell into decay and the roads that bound them together were left in unrepair; the life of the time, barren alike in hovel and castle, was supported by the crude labor of a servile class."
"The tenement-houses near them continue to festoon the façades with the week's wash in every state of unrepair."