- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
65 entries under adjective topic. ×
| petulant | |
| planned(hard, concerned) | |
| responsive(hard, concerned) | |
| restless | |
| serious | |
| sharp | |
| skittish | |
| snappy | |
| strenuous | |
| strict | |
| terrible | |
| thoughtful | |
| tremendous | |
| uneasy | |
| unquiet | |
| upset(hard, concerned) | |
| uptight | |
| keen | |
| active | |
| attentive |
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| APA | Smart Define. (2015). nonchalant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/nonchalant/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "nonchalant thesaurus" https://smartdefine.org/nonchalant/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, nonchalant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/nonchalant/thesaurus/antonyms>. |
| MLA | Smart Define. "nonchalant thesaurus" 9 December 2015. Web. 28 September 2026. <https://smartdefine.org/nonchalant/thesaurus/antonyms> |