Not all-knowing.

Student: I don't get how you know like every word, but you can't pronounce some.

Me: I read a lot but didn't get to use the words. It's more common than you think. And it just seems like it should be ve-He-ment. I really want to pronounce that h.

Student: What's this word? Om-ni-see-ant?

Me: It's omniscient.

Student: Are you sure?

Me: . . .