76 entries under nonchalant topic. ×

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carefree apathetic(expression, indifferent, unsympathetic, inattentive, uninterested)
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careless(adjective, calm, cool, relaxed, indifferent)
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coolheaded(adjective, calm, quiet, cool, relaxed)
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deaf(adjective, indifferent, unsympathetic, inattentive, uninterested)
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feckless(adjective, indifferent, unsympathetic, inattentive, uninterested)
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forgetful(adjective, indifferent, unsympathetic, inattentive, uninterested)
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heedless(adjective, indifferent, unsympathetic, inattentive, uninterested)
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inattentive(adjective, indifferent, unsympathetic, uninterested)
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incurious(adjective, calm, cool, relaxed, indifferent)
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insensitive(adjective, indifferent, unsympathetic, inattentive, uninterested)
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negligent(adjective, calm, cool, relaxed, indifferent)
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oblivious(adjective, indifferent, unsympathetic, inattentive, uninterested)
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self-centered(adjective, indifferent, unsympathetic, inattentive, uninterested)
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supine(adjective, indifferent, unconcerned, unsympathetic, inattentive)
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undaunted(adjective, indifferent, undisturbed, unworried)
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unshaken
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APASmart Define. (2015). unruffled thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unruffled/thesaurus/synonyms
ChicagoSmart Define. 2015. "unruffled thesaurus" https://smartdefine.org/unruffled/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unruffled thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unruffled/thesaurus/synonyms>.
MLASmart Define. "unruffled thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/unruffled/thesaurus/synonyms>