insouciant
in·sou·ciant
adjective
1.
- “an ability to interest casual students”
- “showed a casual disregard for cold weather”
- “an utterly insouciant financial policy”
- “an elegantly insouciant manner”
- “drove his car with nonchalant abandon”
- “was polite in a teasing nonchalant manner”
Origin
From French insouciant, from in- (“not”, prefix) + souciant (“worrying”), 1828.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.