Concept:
The word malevolent refers to someone who wishes harm or evil upon others. It describes a malicious or ill-intentioned attitude.
Step 1: Understand the meaning.
\[
\text{Malevolent} = \text{evil-minded, malicious, harmful}
\]
Step 2: Find the opposite meaning.
The opposite of wishing harm to others is wishing good for others.
\[
\text{Benevolent} = \text{kind, charitable, well-meaning}
\]
Step 3: Check the options.
• Wicked -- similar to malevolent.
• Jovial -- cheerful.
• Benevolent -- kind and well-meaning.
• Insolvent -- unable to pay debts.
Step 4: Choose the antonym.
Hence, the correct antonym is benevolent.
\[
\boxed{\text{Benevolent}}
\]