I'm not sure if you are trying to define this for a class, so I may not have the definition you are looking for. However, just going by logic and the basic definitions of the words, I can give you the following:
Something unrealistic is not real or practical. Idealism is the pursuit of noble principles. Therefore I would think that unrealistic idealism would be principles, ideas, goals, etc. too far-fetched and lofty to achieve in the real world.
No.
Technology is so advanced in the future that nothing seemed unrealistic for that time...
he is unrealistic!
Four.
impractical, unrealistic, impossible, useless
No it is not unrealistic. If you want to, you can follow the principles of Christianity. Many people do exactly that.
I think it is because it's really unrealistic but It depends on the player. You get superpowers and that's cool but it's unrealistic.
you are dreamingyou are being unrealistic
Colours that are found in the rainbow
Unrealistic, immature.
One unrealistic aspect in "The Interlopers" is the coincidence of both men getting trapped under the same tree in the forest at the same time. Another unrealistic element is the prolonged conversation they have while pinned under the tree, considering their intense rivalry and the dire situation they are in.
Unrealistic, immature.