The superlative form of 'dumb,' meaning the least intelligent or most foolish.
From Old English 'dumb' meaning 'unable to speak,' from Germanic roots. Over time, it evolved to mean 'stupid,' though this usage is considered offensive. The superlative '-est' suffix creates 'dumbest.'
Calling someone 'dumb' originally meant they literally couldn't speak, and many perfectly intelligent deaf people were labeled 'dumb'—the word's evolution from a neutral descriptor to an insult reveals how language can accidentally harm people when meanings shift and we forget the original context.
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