Worn and Wan

Worn adjective - Depleted in strength, energy, or freshness.

Wan and worn are semantically related in strained topic. In some cases you can use "Wan" instead an adjective "Worn", when it comes to topics like tired.

Wan adjective - Lacking a healthy skin color.

Worn and wan are semantically related in tired topic. Sometimes you can use "Worn" instead an adjective "Wan", if it concerns topics such as colorless.