Why is it ironic that teiresias is characterized as a “great seer”? because he sees because he is a child because he is blind because is a prophet

Teiresias is a blind prophet. It was ironic in the story because even though he was blind he could see the future (Oedipus' future about what he will do in later in the book). I hope this helps!

Allusion and illusion. an allusion is an indirect reference, whereas an illusion is something that is unreal or incorrect. each of the nouns has a related verb form: allude “to refer indirectly to,” and illude (not a very common word), which may mean “to delude or deceive” or “to subject to an illusion.”