Irony is when you expect something but the opposite occurs.
From these answers, "When an event is the opposite of what is expected" is the correct answer. For example, a lion is killed and eaten by a zebra.
You would expect the lion to win, but with irony, the opposite occurs.
I hope this helps!
I agree with you.
I'd also say that a poem using theoretical or obscure terms to convey meaning may be said to be using abstract diction.
Since these terms are not concrete, they are abstract.
The word that best competes the sentence
“The best player to watch is” her
half shy half assertive - stage direction