180 entries under adjective topic. ×

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intravenous
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iridescent
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kerflooey
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keyed up
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long in the tooth
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miter
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mucked up
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musty
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nervous wreck
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no go
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not functioning
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not working
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obsolete
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of advanced age
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old-fogeyish
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old-fogyish
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olden
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on the blink
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on the shelf
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out of action
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APASmart Define. (2015). senescent thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/senescent/thesaurus/synonyms
ChicagoSmart Define. 2015. "senescent thesaurus" https://smartdefine.org/senescent/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, senescent thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/senescent/thesaurus/synonyms>.
MLASmart Define. "senescent thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/senescent/thesaurus/synonyms>