Synonyms|142Antonyms|0|Broader|4Narrower|0Related|47
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know-nothing
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lackbrain
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lackwit
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lamebrain
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leatherback(noun, reptile)
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loon
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lump
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lumpish
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meathead
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mentally disturbed(expression, idiom)
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mentally ill(expression, idiom)
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mindless
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mome
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mug
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mutt
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natural
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nimrod
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ninny
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ninnyhammer
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peen
13 years ago|1.8k views|share |citing 
APASmart Define. (2013). loggerhead thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/loggerhead/thesaurus/synonyms
ChicagoSmart Define. 2013. "loggerhead thesaurus" https://smartdefine.org/loggerhead/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, loggerhead thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/loggerhead/thesaurus/synonyms>.
MLASmart Define. "loggerhead thesaurus" 17 June 2013. Web. 21 September 2026. <https://smartdefine.org/loggerhead/thesaurus/synonyms>