dilapidate

UK: /dɪˈlæpɪˌdeɪt/ US: (di lap′i dāt′)

Inflections of 'dilapidate' (v): (⇒ conjugate)

dilapidates

v 3rd person singular

dilapidating

v pres p

dilapidated

v past

dilapidated

v past p

WordReference Random House Unabridged Dictionary of American English © 2026

di•lap•i•date  (di lap′i dāt′), v. -dat•ed, -dat•ing. 
v.t. 

1. to cause or allow (a building, automobile, etc.) to fall into a state of disrepair, as by misuse or neglect (often used passively):
   The house had been dilapidated by neglect.
2. [Archaic.] to squander;
   waste.

v.i. 

3. to fall into ruin or decay.

• Medieval Latin dīlapidātus, past participle of dīlapidāre to squander (compare dīlapidātiō disrepair), Latin: to pelt with stones; see di-², lapidate
• 1560–70

di•lap′i•da′tion, n. 
di•lap′i•da′tor, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

dilapidate / dɪˈlæpɪˌdeɪt/ verb

1. to fall or cause to fall into ruin or decay

Etymology: 16th Century: from Latin dīlapidāre to scatter, waste, from dis- apart + lapidāre to stone, throw stones, from lapis stone