What does "exhausted" mean?

1. (very tired) feeling extremely tired, usually after a lot of hard work or exercise. 2. (used up) completely used up so that nothing is left.

Is it correct to say "The marathon was very exhausted."?

No — say "The marathon was very exhausting.". Use 'exhausted' to describe how a person feels, and 'exhausting' to describe the thing that makes them feel that way.

exhausted

adj.

US //ɪɡˈzɔstɪd// UK //ɛɡzˈɔːstɪd// ex·haust·ed

1 very tired (adj.)
B1 Intermediate

feeling extremely tired, usually after a lot of hard work or exercise.

characterised by extreme physical or mental fatigue; drained of energy.

Example

After working a double shift at the hospital, she was completely exhausted.

Example

The climbers reached the summit just before dusk, appearing utterly exhausted but visibly relieved to have completed the ascent.
- energetic
- refreshed
Pitfall

The marathon was very exhausted.

The marathon was very exhausting.

Use 'exhausted' to describe how a person feels, and 'exhausting' to describe the thing that makes them feel that way.
2 used up (adj.)
B2 Upper Intermediate

completely used up so that nothing is left.

completely depleted or consumed; used in reference to resources, supplies, or funds.

Example

The village's water supply was exhausted after the long summer drought.

Example

By the end of the third quarter, the department's annual budget was nearly exhausted, forcing a freeze on all non-essential travel.
- abundant
- full

Origin

From exhaust + -ed.