(comparative more brilliant, superlative most brilliant)
- Shining brightly.
- the brilliant lights along the promenade
- (of a colour) Both bright and saturated.
- butterflies with brilliant blue wings
- (of a voice or sound) having a sharp, clear tone
- Of surpassing excellence.
- The actor's performance in the play was simply brilliant.
- Magnificent or wonderful.
- Highly intelligent.
- She is a brilliant scientist.
From French brillant, from Medieval Latin as if *berilare (“to sparkle like a beryl or other precious stone”), from Latin berillus, beryllus (“a beryl, gem, eyeglass”), from Ancient Greek βήρυλλος (bērullos, “beryl”).