record-breaking

/ɹˈɛkɔːdbɹˈeɪkɪŋ/

/ɹˈɛkɚdbɹˈeɪkɪŋ/

record-breaking

surpassing anything that has been done before, particularly beyond any previous record

Examples

1. They are record-breaking.

2. It's record-breaking in Texas and Oklahoma and parts of Kansas.

3. His five decades of career has been historic and record-breaking quite literally.

4. For record-breaking timekeeping, the combination of two atomic clocks can be better than one.