Select the most appropriate one-word substitution for the given group of words.

A person who is unduly anxious about his/her health

valetudinarian

The most appropriate one-word substitution for a person who is unduly anxious about his/her health is valetudinarian.

• Disciplinarian is a person who enforces discipline.
• Antiquarian is a person who collects or studies antiques.
• Egalitarian is a person who believes in equal rights for all people.