140 entries under noun topic. ×

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aching(pain, throbbing)
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anguish(pain, throbbing)
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anxiety(worry, doubt, scruple, qualm)
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backache(pain, throbbing)
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bee in your bonnet(expression, idiom, worry)
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care
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complaint(opposition, protest, objection, equivocation)
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dissent
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fixation
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giggle
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headache(pain, throbbing)
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hurt(pain, throbbing)
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inkling
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irony
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leer
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mental state(expression, worry)
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misery(pain, throbbing)
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obsession
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pain
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pang(pain, throbbing)
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APASmart Define. (2015). niggle thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/niggle/thesaurus/synonyms
ChicagoSmart Define. 2015. "niggle thesaurus" https://smartdefine.org/niggle/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, niggle thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/niggle/thesaurus/synonyms>.
MLASmart Define. "niggle thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/niggle/thesaurus/synonyms>