IPA: /ˈsuːpərˌbraɪt/
KK: /suːpərˈbraɪt/
Very bright or giving off a lot of light.
The superbright stars lit up the night sky.
Comparative: superbrighter
Superlative: superbrightest
Superbright → It is formed from "super-" (meaning above or beyond) and "bright" (from Old English "beorht", meaning shining or radiant). The word "superbright" means exceptionally bright or shining beyond the usual brightness.
Think of something that shines "beyond" ('super-') what is normally "shining" ('bright') — that's why superbright means exceptionally bright.