Sentence examples similar to colossal thoughtlessness from inspiring English sources

Was it just thoughtlessness?

Accidental thoughtlessness is forgivable.

Thoughtlessness, however, perpetuates bigotry.

Calculated thoughtlessness is not.

But basic thoughtlessness can contribute, too.

It was an act of gross thoughtlessness.

"The destruction is colossal".

"There's nothing colossal".

The result is colossal.

It's colossal.

They were colossal".