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Houghton Mifflin

stu·pid  audio  (stpd, sty-) KEY 

ADJECTIVE:
stu·pid·er, stu·pid·est
  1. Slow to learn or understand; obtuse.
  2. Tending to make poor decisions or careless mistakes.
  3. Marked by a lack of intelligence or care; foolish or careless: a stupid mistake.
  4. Dazed, stunned, or stupefied.
  5. Pointless; worthless: a stupid job.
NOUN:
A stupid or foolish person.

ETYMOLOGY:
Latin stupidus, from stupre, to be stunned

OTHER FORMS:
stupid·ly(Adverb), stupid·ness(Noun)


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