[di.lap.i.date] vb -dat.ed ; -dat.ing [L dilapidatus, pp. of dilapidare to squander, destroy, fr. dis- + lapidare to pelt with stones, fr. lapid-, lapis stone] vt (ca. 1570) 1: to bring into a condition of decay or partial ruin "furniture is dilapidated by use --Janet Flanner"
2. archaic: squander ~ vi: to become dilapidated -- di.lap.i.da.tion n