be out of sync (with someone or something)(redirected from be out of sync with them)
be out of sync (with someone or something)
To stop happening, functioning, or moving at the same time and pace as someone or something else; to be in an unsynchronized or uncoordinated manner. If your teammates are out of sync, you're going to have a hard time getting this project done correctly and on time. If the coolant system is out of sync with the energy output, it could lead to a core meltdown.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.