We found 3 dictionaries that define the word underbright:

General (3 matching dictionaries)

1. underbright: Merriam-Webster
2. underbright: Wordnik
3. underbright: Wiktionary

Definitions from Wiktionary (underbright) ▸ adjective:  Not bright enough. ▸ Words similar to underbright ▸ Usage examples for underbright ▸ Idioms related to underbright ▸ Wikipedia articles (New!) ▸ Popular nouns described by underbright ▸ Words that often appear near underbright ▸ Rhymes of underbright ▸ Invented words related to underbright