1) Become a partial ruin 2) Destroy 3) Destruct 4) Fall into decay or ruin 5) To fall into ruin or disuse 6) To squander or waste 
• (v. t.) To bring into a condition of decay or partial ruin, by misuse or through neglect; to destroy the fairness and good condition of; -- said of a building. • (v. i.) To get out of repair; to fall into partial ruin; to become decayed; as, the church was suffered to dilapidate. • (v. t.) To impair by waste and abuse; to squander....
Di·lap'i·date transitive verb [ imperfect & past participle Dilapidated ; present participle & verbal noun Dilapidating .] [ Latin dilapidare to scatter like stones; di- = dis- + lapidare to throw stones, from ...
[v] - bring into a condition of decay or partial ruin by neglect or misuse
verb bring into a condition of decay or partial ruin by neglect or misuse