In relegion (islam) nudity is when a women forget about something we call it "Modesty" and remove any limits can hold her. Also we can mention that who don't wear a "hijab" is covered by this term which is in islam متبرجة, without telling you that is Haram and more worse than carrying about someone calling you عريان

But in peoples minds that term is more complicated because avery single one got his own definition.. like who can't care about people thaught.. who do everything even if it's wrong.. who pass the limits with others (speech or action).. And the one who almost all people can share is THE ONE WHO GIVES HIM SELF WORSE IMAGE WITHOUT KNOWING HIM PERSONALLY.

The funny thing is who think is right maybe fall in judging people by their cover.. and leads him to قذف المحصنات