Here is a context clues worksheet on the noun insouciance. While it is an infrequently used word in the English language (it means “lighthearted unconcern,” incidentally), it does turn up occasionally, as does its adjective, insouciant, in common discourse from time to time. Both words have a rich etymology, originating, apparently, in the Latin verb sollicitare–“to agitate,” should you or your students be interested.
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