Antonyms

Step 1: Understanding the meaning of the word "Peeved."
"Peeved" means annoyed, irritated, or feeling angry. Step 2: Analyzing each option: \begin{itemize} \item Gripe: To complain --- similar meaning, not opposite. \item Vexed: Annoyed or worried --- similar meaning, not opposite. \item Delighted: Very pleased or happy --- opposite of annoyed. \item Miffed: Slightly angry or offended --- similar meaning, not opposite. \end{itemize} Thus, the correct opposite of "Peeved" is Delighted.

Step 1: Understand the meaning of ``Optimistic''.
Optimistic means having a positive outlook or expecting good outcomes.
Step 2: Identify the opposite meaning.
The opposite of expecting positive outcomes is expecting negative outcomes.
Step 3: Analyze the options.
Hopeful and Idealistic are similar to optimistic.
Realistic is neutral, not opposite.
Pessimistic means having a negative outlook — opposite of optimistic.
Step 4: Conclusion.
Hence, the correct antonym is Pessimistic.