verb (intr, adverb)
to break owing to long use or poor constructionthe chassis is falling apart
to become disorganized and ineffectivesince you resigned, the office has fallen apart
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Collapse, break down, either physically or mentally and emotionally. For example, This chair is about to fall apart, or After his wife died, he fell apart. For synonyms for the latter usage, see come apart at the seams; go to pieces.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.