record-breaking
adjectiveUK /ˈrekɔːdˌbreɪkɪŋ/
US /ˈrekərdˌbreɪkɪŋ/
Better or bigger than anything before.
She ran a record-breaking race and won the gold medal.
RELATED WORDS
OTHER MEANINGS
2. So good or so big that it sets a new official best result.
The team celebrated their record-breaking score of ten goals.
3. Causing a new highest or lowest number to be officially noted.
The city had a record-breaking heat wave last summer.
4. Surpassing all previous achievements in a particular activity.
His record-breaking jump amazed the crowd.