The Good Soldier, by Ford Madox Ford, is an example of this.
by nature, first person narrative is always semi-reliable/unreliable and not omniscient.
I have huge difficulty even imagining a truly "omniscient" narrator who can be "unreliable". "Unreliable narrator" is almost welded to first-person POV.
caw
Well, I suppose it would depend on how you're defining unreliable. If going by the "omitting the truth" aspect, aren't most novels more about what you leave out than what you put in.
<...> Agatha Christie books are limited omniscient (I think, it's been a while since I read either or had a conversation about narration styles. Limited omniscient is usually third person, and you can see into one person's head without restrictions, yes?) and intentionally leave out information so they can have their dramatic climaxes.
I don't know if this is exactly what you were looking for, but in the novel for which I'm currently trying to get representation, my narrator is very unreliable. She is working through the death of her brother, for one thing, and sometime into the story it's revealed that she's been under the influence of drugs for several chapters before it's pointed out. Therefore, a lot of what she describes was the product of her imagination, or a flat-out lie.
The narrator of The Good Soldier isn't omniscient, though, and that's made very explicit in the book. "
My memory (admittedly fallable) is that that novel is not Omni though. I don't think I've seen an Omni with an unreliable narrator. Obviously 1st can be unreliable although generally there is still a rule that the narrator still shouldn't directly lie to the reader. The narrator never actually lied I think in Roger Ackroyd, just left a lot out.Read The Castle in the Forest by Norman Mailer.
He has a demon for a narrator - by his nature he is somewhat unreliable - not telling the whole truth of who he is through the beginning of the book.
I'm not really sure what kind of unreliable you are aiming for, if it is just in no complete disclosure and omission, or if the narrator is telling the story wrong for a particular reason. Or, as a character, just generally unreliable. Those things could make a difference in how it would go over. Just remember that your readers put trust in you to tell the story - trusting that the plot will come through a satisfactory chain of events, a complete story will be told, it will feel honest, and breaking that trust means they may put the book down and not pick it back up.
My memory (admittedly fallable) is that that novel is not Omni though. I don't think I've seen an Omni with an unreliable narrator. Obviously 1st can be unreliable although generally there is still a rule that the narrator still shouldn't directly lie to the reader. The narrator never actually lied I think in Roger Ackroyd, just left a lot out.
Since omni is basically the author's PoV, you would have the author lying to the reader and I can't really see that working.
Since omni is basically the author's PoV, you would have the author lying to the reader and I can't really see that working.
Again, this sounds like first-person, not omniscient.