The quality or state of being unwilling to help or accommodate others.
From disobling + -ness suffix, creating an abstract noun. This follows the standard English pattern of converting adjectives to abstract nouns to describe qualities.
The noun form 'disobligingness' is remarkably specific—it turns a behavioral tendency into a character trait. It's the kind of word that suggests someone viewed rudeness and unhelpfulness as fundamental personality flaws worthy of their own label.
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