baby-brained

== English == === Alternative forms === babybrained === Etymology === From baby +‎ brained. === Adjective === baby-brained (comparative more baby-brained, superlative most baby-brained) (colloquial, derogatory) Extremely stupid; dumb, idiotic. Synonyms: see Thesaurus:stupid (colloquial, slang, figurative) Having the mindset or outlook of a baby or toddler; immature, childish, infantile.