to delay · to postpone · to keep putting sth off · to procrastinate · (computing) to lag

Testing has been delayed by two days. As a consequence, we need to reschedule the release date.

We apologize for the delay and regret any inconvenience it may have caused.

The meeting has been postponed until tomorrow.

Although the accident has delayed progress by one month, we have managed to catch up with the schedule.

With the weather getting worse, the departure was put off.