vexing; upsetting; offensive; unexpected and regrettable; unthinkable
Often used as 心外だ or 心外な when something is outside what one expected, intended, or deserves, and therefore feels regrettable, unfair, insulting, or hard to accept. For neutral 'unexpected,' 意外 is usually safer.
そんなふうに誤解されるのは心外だ。
It is upsetting to be misunderstood that way.
Being called a liar, she looked offended.
For the title favorites, losing in the first round was an unexpected and bitter result.
It's upsetting to be told something like that.
I felt hurt by his criticism.
I was shocked by my boss's offensive remark.
She stood up looking rather offended.