Misunderstandings, colloquialisms, wrong words and false friends: 2
I would like to go to a school reunion as it would be a sympathetic meeting.
Now that depends on what this school reunion meeting is all about!
The word sympathetic in English means that you understand the feelings of someone who is in some kind of bad situation, and as a result you feel that you have to be very kind to them, particularly if you have experienced something similar or you yourself have experienced something unpleasant, and so express your understanding of their situation.
Now in Polish and French, the false friend form means loveable, nice or pleasant.
In the context of the sentence, the correct word the speaker should use is pleasant, or even enjoyable.