umbrageously

/ʌmˈbreɪdʒəsli/
adverb
  1. In a way that shows that someone feels offended, annoyed, or suspicious, often without good reason.
    • She looked umbrageously at the waiter when he suggested she might want a smaller portion.
    • The author umbrageously rejected any suggestion that his book contained errors.
    • He responded umbrageously to the mild criticism, accusing everyone of being unfair.