The word carries a negative connotation, suggesting a lack of politeness or kindness. The receptionist's disobliging manner made the guests uncomfortable.
Pro Tip 2/3
Not Interchangeable
'Disobliging' is different from 'disagreeable'; it specifically refers to non-cooperation, not general unpleasantness. Despite his friendly smile, his disobliging refusal to assist revealed his true nature.
Pro Tip 3/3
Context Matters
Use 'disobliging' when someone intentionally does not help, rather than when they can't help. She was not just busy; she was disobliging by ignoring my requests for help.