Meaning: Something is out-of-date if it is old and therefore no longer useful or no longer accurate.
- Don't waste money on old textbooks because they could be out-of-date and the information might no longer be correct.
- I didn't know the timetable was out-of-date. I got it off the internet so I thought it'd be new, not an old one from the 1990's.
The map we had was out-of-date, so we