Not giving a rat's ass about anything.
The extreme of all apathy.
Not giving a fuck.
Lack of all things binding one's emotions to any actions they commit.
That man is so callous. He has a family of a wife and six kids but he still drove his car off of a cliff and into a pile of burning tires because his friend said, "Do it, you won't."
by Clinik December 23, 2009

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Top Definition
emotionally hardened; cold-blooded and indurate to public opinion;
I have become so callous towards your constant critizizam
by Eloise. December 07, 2008

The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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Uncaring, indifferent or unconcerned about the feelings or needs of others, heartless, cruel.
The wealthy industrialist rolled his eyes in callous disdain as he brushed past a crying child begging for help.

The school bully callously humiliated a helpless newcomer.
by Lorelili November 18, 2012

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The Urban Dictionary Mug

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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thick-skinned english teacher
BFFADS is an extremely callous man.
He is so callous man.
by JasonPenney May 20, 2007

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt