精彩 (せいさい, seisai) Japanese meaning: brilliance | Kotomora。
His paintings are full of brilliance.
This jewel emits a brilliant luster.
Usage patterns
〈人〉が精彩を欠くto lack vividness or spirit (in a performance, work, etc.)
His play today lacked its usual spark.
〈物〉が精彩を放つto shine brilliantly, to radiate brilliance
The jewel gleamed brilliantly under the light.