Synonyms|511Antonyms|235|Broader|11Narrower|5Related|1.2k
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fanatical(calm, indifferent)
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festal
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fierce
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fiery
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fireball
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fleet
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flush
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flush it
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flying
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frolicsome
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fussbudget
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gay
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generative
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get up and go
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gingery
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gladsome
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gleeful
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go-go(meek, inactive)
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go after(expression, dull, weak)
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gone on(expression, dull, weak)
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APASmart Define. (2016). lethargic thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lethargic/thesaurus/antonyms
ChicagoSmart Define. 2016. "lethargic thesaurus" https://smartdefine.org/lethargic/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, lethargic thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lethargic/thesaurus/antonyms>.
MLASmart Define. "lethargic thesaurus" 4 January 2016. Web. 27 September 2026. <https://smartdefine.org/lethargic/thesaurus/antonyms>