Synonyms|2.5kAntonyms|295|Broader|37Narrower|107Related|878
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be irrelevant(expression, idiom)
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be irresponsible(respect, regard, attend)
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be negligent(respect, regard, attend)
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be remiss(advance, respect, attend)
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being
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black mood
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blahs
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bliss
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bravery
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brush-off(feeling, regard)
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brush off(expression, feeling, regard)
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brushoff(feeling, regard)
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brusqueness
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callousness
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carus
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casualness
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certainty
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certitude
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cheer
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chill
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APASmart Define. (2016). concern thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/concern/thesaurus/antonyms
ChicagoSmart Define. 2016. "concern thesaurus" https://smartdefine.org/concern/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, concern thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/concern/thesaurus/antonyms>.
MLASmart Define. "concern thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/concern/thesaurus/antonyms>