An unknown quantity

usgb
noun

Something or someone whose nature, value, or significance cannot be determined or is not yet known.

As a newcomer to the team, he is an unknown quantity, no one knows what to expect from him.
Visual representation of "an unknown quantity" - Something or someone whose nature, value, or significance cannot be determined or is not yet known.

Often appears as...

  • remain an unknown quantity
  • be an unknown quantity

Usage tips

Idiomatic

Definition 1 of 1
Visual representation of "an unknown quantity"
LampPro Tip 1/3

Newcomer Unpredictability

Use it to describe a new member whose effects or actions are unpredictable due to lack of information.

Illustration for Newcomer Unpredictability
Our team's new recruit is an unknown quantity; we hope he'll perform well.
LampPro Tip 2/3

Variable Situations

It can refer to a situation where outcomes are unpredictable because variables are not yet understood.

Illustration for Variable Situations
With so many variables, the project's success is an unknown quantity.
LampPro Tip 3/3

Mystery Factor

Highlight a specific characteristic or factor that is mysterious and yet to be discovered.

Illustration for Mystery Factor
In this equation, the role of the new enzyme remains an unknown quantity.
Visual representation of the word "An unknown quantity"

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