Run out of steam
verb
To become tired; to lose energy or vitality; to gradually decrease in power or effectiveness.
After running for ten miles non-stop, I finally ran out of steam and had to sit down.

Often appears as...
- feel like you're running out of steam
- quickly run out of steam
Usage tips
Idiomatic
verb
To lose enthusiasm, interest, or momentum.
The project started with great promise, but seemed to run out of steam halfway through.

Often appears as...
- project ran out of steam
- campaign is running out of steam
Usage tips
Idiomatic
verb
To become tired; to lose energy or vitality; to gradually decrease in power or effectiveness.
After running for ten miles non-stop, I finally ran out of steam and had to sit down.

Often appears as...
- feel like you're running out of steam
- quickly run out of steam
Usage tips
Idiomatic
verb
To lose enthusiasm, interest, or momentum.
The project started with great promise, but seemed to run out of steam halfway through.

Often appears as...
- project ran out of steam
- campaign is running out of steam
Usage tips
Idiomatic
Definition 1 of 2

Energy Depletion
Use when describing physical or mental tiredness after sustained effort or activity.

She had been studying all week for her exams and finally ran out of steam.
Informal Expression
Best suited for casual conversation rather than formal settings.

I wanted to finish painting the house today, but I've run out of steam.
Waning Interest
Can imply lost interest due to fatigue, not only physical exhaustion.

I was excited about learning to play the guitar, but I've run out of steam.
Energy Depletion
Use when describing physical or mental tiredness after sustained effort or activity.

She had been studying all week for her exams and finally ran out of steam.
Informal Expression
Best suited for casual conversation rather than formal settings.

I wanted to finish painting the house today, but I've run out of steam.
Waning Interest
Can imply lost interest due to fatigue, not only physical exhaustion.

I was excited about learning to play the guitar, but I've run out of steam.
Energy Depletion
Use when describing physical or mental tiredness after sustained effort or activity.

She had been studying all week for her exams and finally ran out of steam.
Informal Expression
Best suited for casual conversation rather than formal settings.

I wanted to finish painting the house today, but I've run out of steam.
Waning Interest
Can imply lost interest due to fatigue, not only physical exhaustion.

I was excited about learning to play the guitar, but I've run out of steam.
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