Part of speech:
Not interested; indifferent.
Showing a lack of consideration:
Free from troubles or worry
Living without undue worry or concern; calm.
Not taking heed; careless; unmindful
Not particularly good or bad, large or small, right or wrong, etc.; fair, average, etc.
Not being burdened by trouble, worry, or care; happy and carefree.
Not disturbed or distracted.
Interested and involved:
Tending to be very anxious and easily agitated.
Find another word for insouciant. In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for insouciant, like: unconcerned, careless, carefree, jaunty, nonchalant, breezy, casual, easygoing, heedless, indifferent and lighthearted.