1. excessively bright or brilliant in light or color

Examples

• The overbright fluorescent lights gave her a headache.
• His overbright smile seemed forced and unnatural.
• The overbright colors in the painting hurt my eyes.
• She squinted in the overbright sunlight reflecting off the snow.
• The photographer adjusted the settings to avoid overbright exposure.
• The overbright stage lights made it difficult for actors to see the audience.