insufferably
/ɪnˈsʌfərəbli/
adverb
- In a way that is extremely annoying or unpleasant; to a degree that cannot be tolerated.
- She found his constant bragging insufferably arrogant.
- The summer heat was insufferably humid, making it hard to breathe.
- He was insufferably rude to the waiter, complaining about everything.