What's objectionable varies between people or cultures, so understand the audience's values when using the word. She found his jokes objectionable, though others laughed.
Pro Tip 2/3
Strong Disapproval
'Objectionable' is strong and shows you're not just against something, but you find it offensive. The article contained objectionable language that angered many readers.
Pro Tip 3/3
Cultural Sensitivity
Some behaviors are specifically objectionable in certain cultures; research this to avoid misunderstandings. Wearing shoes indoors is objectionable in some cultures.