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

A person who can walk on ropes 

Funambulist

The most appropriate one-word substitution for "a person who can walk on ropes" is funambulist.

• Stuntman is a person who performs dangerous or difficult stunts in movies or TV shows.
• Funambulist is a person who walks on a tightrope or slack rope.
• Dolt is a stupid or foolish person.
• Effeminate means having or showing characteristics traditionally associated with women.