We found 2 dictionaries that define the word thick-brained:

General (2 matching dictionaries)

1. thick-brained: Wordnik
2. thick-brained: Wiktionary

Definitions from Wiktionary (thick-brained) ▸ adjective:  stupid; dim-witted ▸ Words similar to thick-brained ▸ Usage examples for thick-brained ▸ Idioms related to thick-brained ▸ Wikipedia articles (New!) ▸ Popular nouns described by thick-brained ▸ Words that often appear near thick-brained ▸ Rhymes of thick-brained ▸ Invented words related to thick-brained