For me, the definition of the typical eurosceptic, is a person who oppose any form of political, social and economic integration between European "nation-states" A person thats not willing to see any pragmatic, democratic or economical benefits from integration.
The typical eurosceptic is often found in nationalistic movements and in very romantically, conservative groups where yesterday is more important then tomorrow and institutions are more important then people. Those movements, groups and individuals are blinded by an idea of how things are, instead of how things really are. Often delusionalised that they are above everything that is surrounding their isolated perception on how things are or should be and that there is a threat in everything that is new, different or partly in opposition to their worldview.
As you see, I don't mention criticism towards EU systematics, democracy or politics in my definition at all. Why? To be critical, you must be constructive in your criticism and you must also offer constructive solutions or alternatives to what you are critical about, eurosceptics don't do that at all, according to my definition above.
If you want change and reforms to better things of state, you must search elsewhere.
Then there's the rest, fans of status qou.