Underbrained
"Underbrained" in a Sentence (2 examples)
Newton Mackintosh, Lucy Lake Poor Lucy Lake was overgrown, / But somewhat underbrained. / She did not know enough, I own, / To go in when it rained.
I hope that even a species as underbrained as yours can understand that survival is a very good idea.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.