If you describe someone as ~, you mean that they have ideals, and base their behaviour on these ideals, even though this may be impractical.
Idealistic young people died for the cause...
ADJ
If you describe someone as ~, you mean that they have ideals, and base their behaviour on these ideals, even though this may be impractical.
Idealistic young people died for the cause...
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012