dilapidation vs decrepitude

dilapidation and decrepitude both are nouns.

Word	Noun	Adjective	Verb	Adverb
dilapidation	Yes	No	No	No
decrepitude	Yes	No	No	No

As nouns, dilapidation and decrepitude are synonyms defined as:

dilapidation and decrepitude: a state of deterioration due to old age or long use

dilapidation (noun)	decrepitude (noun)
the process of becoming dilapidated	a state of deterioration due to old age or long use
a state of deterioration due to old age or long use	The quality or state of being wasted and weakened by or as if by the infirmities of old age.