Definition

Noun: A sunken arch is a physical condition of the foot where the instep (the arched middle part of the foot's sole) is flattened or has collapsed. This results in the entire sole of the foot, including the arch area, making contact with the ground when standing.

Usage

The term is used specifically in medical, anatomical, and general health contexts to describe a fallen or low arch. It is a descriptive term for a type of flatfoot.

Examples

• Walking for long periods is painful for him due to his sunken arch.
• The podiatrist diagnosed the patient with a sunken arch and recommended orthotic inserts.
• A sunken arch can sometimes lead to pain in the feet, ankles, or knees.

Advanced Usage

• The condition is often synonymous with pes planus (the medical term for flat feet) or fallen arches.
• It is typically contrasted with a high arch (pes cavus).

Variants and Related Words

• Fallen arch: A common synonym for sunken arch.
• Flatfoot / Flat feet: The general condition characterized by a sunken or absent arch.
• Pes planus: The formal medical term.

Synonyms

• Fallen arch
• Flatfoot
• Pes planus

Antonyms

• High arch
• Pes cavus

Noun

1. an instep flattened so the entire sole rests on the ground