There’s no telling

Pro Tip 1/3

Uncertainty

Use it to express that an outcome can't be predicted with any certainty.

He's applying for jobs, and there's no telling which company will hire him.

Pro Tip 2/3

Conversational

Fits well in casual conversation more than formal writing.

With this weather, there's no telling if we'll have the picnic.

Pro Tip 3/3

No Control

Suggests a lack of control over future events or outcomes.

With the unpredictable market, there's no telling what our profits will look like.