insouciance 

lighthearted unconcern

Amanda sauntered casually into the meeting room with an air of insouciance; if she was worried at all about her presentation, she certainly didn't show it

insouciance by Your Grim Reaper June 25, 2003

Insouciance 

To have a lack of concern to what insouciance mean

He is really insouciance about the word "insouciance"

Insouciance by thegreatsouthafrican October 7, 2017

insouciant 

when you're just too damn cool to care about anything

cashier: would you like your check in the bag?
me: fuck yourself with it, i'm insouciant

insouciant by Margaretard October 1, 2008

insouciant wensey

After you come in a woman, add a scoop of ice cream and a shot of kahlua with a funnel. She jumps around then squats over a glass, drinks it and then throws it up into your mouth.

Honey, I'm thirsty -- hop on my disco stick and mix me up an Insouciant Wensey.

insouciant wensey by Yambone III February 5, 2010

insouciant attitude

When a person is incredibly nonchalant about everything in life and just doesn't care about most things or anything they probably are supposed to. Though the word can be used positively or negatively, it basically relates to "not caring much."
It can really annoying coming from an adult you expect to be responsible.

Person 1: Hey, did you complete your part of the presentation on time? The meeting is in two days.
Person 2: Nah... It's whatever... doesn't really matter
Person 1: ...Shouldn't you at least try before it's too late? We're gonna need it
Person 2: Honestly, IDC at this point. I can't stand this job anyway...

Person 3: Wow. He's got such a bad insouciant attitude

insouciant attitude by Noppidynope November 30, 2022