i Register
In some senses, disoblige is marked as British. Watch for register when choosing this word.
verb
to be unwilling to oblige; to disappoint, to inconvenience, not to cooperate.
Sorry to disoblige everybody; I know you were depending on me to bring a good weather forecast for our fête, but it is going to rain.
But Miss Frances married, in the common phrase, to disoblige her family, and by fixing on a Lieutenant of Marines, without education, fortune, or connexions, did it very thoroughly.
To offend by an act of unkindness or incivility.