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Impossible vs. Infeasible: What's the Difference?

Edited by Huma Saeed || By Sara Rehman || Updated on November 29, 2023
Impossible refers to something that cannot happen or be done, whereas infeasible suggests impracticality or difficulty in accomplishment within current means.

Key Differences

Impossible denotes a state where something cannot occur or be achieved under any circumstances, based on laws of nature or logic. In contrast, infeasible implies that while theoretically possible, something is not practical or viable due to existing constraints.
Sara Rehman
Nov 29, 2023
The term 'impossible' is absolute, indicating a zero probability of occurrence. Infeasible, however, indicates a high level of difficulty or impracticality, often due to limitations in resources, technology, or timing.
Sara Rehman
Nov 29, 2023
When something is described as impossible, it is understood as permanently unattainable. Infeasibility, however, often has a conditional or temporal aspect, suggesting that under different conditions, the task might become feasible.
Huma Saeed
Nov 29, 2023
Impossible is often used in a hyperbolic sense to express extreme skepticism or disbelief. Infeasible, on the other hand, is used in more realistic contexts, often in planning or analysis scenarios.
Janet White
Nov 29, 2023
The impossibility of an event or task usually does not change with technological or scientific advancements. Infeasibility, conversely, can shift over time with changes in technology, resources, or circumstances.
Harlon Moss
Nov 29, 2023
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Comparison Chart

Nature of Limitation

Fundamental, based on laws of nature or logical contradictions.
Practical, based on current resources, technology, or circumstances.
Sara Rehman
Nov 29, 2023

Permanence

Typically permanent and unchanging.
Often temporary, subject to change with conditions.
Sara Rehman
Nov 29, 2023

Scope of Usage

Absolute, denoting zero probability.
Conditional, suggesting high difficulty or impracticality.
Sara Rehman
Nov 29, 2023

Contextual Flexibility

Inflexible, as it denotes an unalterable state.
Flexible, as feasibility can change over time.
Janet White
Nov 29, 2023

Implication for Effort

No effort can change the status.
Effort may change status if conditions improve.
Sara Rehman
Nov 29, 2023
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Impossible and Infeasible Definitions

Impossible

A hyperbolic way to express extreme difficulty.
Solving this puzzle in one minute seems impossible.
Sara Rehman
Nov 29, 2023

Infeasible

Not practical or convenient to do or achieve.
Constructing a bridge here is infeasible due to environmental constraints.
Janet White
Nov 29, 2023

Impossible

Not able to occur, exist, or be done.
Flying unaided by technology is impossible for humans.
Sara Rehman
Nov 29, 2023

Infeasible

Not sensible or realistic in the current context.
Hiring 100 new employees this month is infeasible for a small business.
Aimie Carlson
Nov 29, 2023

Impossible

Incapable of being true or happening.
A square circle is an impossible shape.
Sara Rehman
Nov 29, 2023

Infeasible

Impractical due to excessive cost or complexity.
Implementing this plan is infeasible given our limited budget.
Aimie Carlson
Nov 29, 2023

Impossible

Unattainable within the realm of current understanding or laws.
Traveling faster than light is currently impossible.
Sara Rehman
Nov 29, 2023

Infeasible

Unlikely to be accomplished within existing means or conditions.
Completing the project in one week is infeasible.
Harlon Moss
Nov 29, 2023

Impossible

Utterly impractical or unrealistic.
Remembering every word in the dictionary is impossible.
Aimie Carlson
Nov 29, 2023

Infeasible

Unachievable under current circumstances or limitations.
Traveling to another galaxy with current technology is infeasible.
Huma Saeed
Nov 29, 2023

Impossible

Incapable of having existence or of occurring.
Sara Rehman
Feb 22, 2023

Infeasible

Not feasible; impracticable.
Sara Rehman
Feb 22, 2023

Impossible

Not capable of being accomplished
An impossible goal.
Sara Rehman
Feb 22, 2023

Infeasible

Not feasible.
Sara Rehman
Feb 22, 2023

Infeasible

Not capable of being done or accomplished; impracticable.
Sara Rehman
Feb 22, 2023

Infeasible

Not capable of being carried out or put into practice;
Refloating the sunken ship proved impracticable because of its fragility
A suggested reform that was unfeasible in the prevailing circumstances
Sara Rehman
Feb 22, 2023

FAQs

How is infeasible different from impossible?

Infeasible implies that something is impractical or difficult within current means, but not absolutely unattainable.
Huma Saeed
Nov 29, 2023

Can the impossible become feasible?

By definition, the impossible cannot become feasible, as it defies fundamental constraints.
Harlon Moss
Nov 29, 2023

Can something be both impossible and infeasible?

If something is impossible, it is inherently infeasible, but not all infeasible things are impossible.
Sara Rehman
Nov 29, 2023

Is infeasibility a permanent state?

No, infeasibility can change with improvements in conditions or resources.
Janet White
Nov 29, 2023

Can scientific advances make the impossible possible?

True impossibilities, based on fundamental principles, remain impossible despite advances.
Aimie Carlson
Nov 29, 2023

Are all logical contradictions impossible?

Yes, logical contradictions, by their nature, are impossible.
Janet White
Nov 29, 2023

What does impossible mean?

Impossible refers to something that cannot happen or be achieved under any circumstances.
Sara Rehman
Nov 29, 2023

Does infeasible mean the same as impractical?

Infeasible often aligns with impracticality, but emphasizes the difficulty in accomplishment more.
Harlon Moss
Nov 29, 2023

Can something be infeasible in one context but feasible in another?

Yes, feasibility can vary depending on the specific context or conditions.
Sara Rehman
Nov 29, 2023

Is infeasibility always due to lack of resources?

Lack of resources is a common reason, but infeasibility can also stem from technological, timing, or practical constraints.
Sara Rehman
Nov 29, 2023

Is teleportation impossible or infeasible?

Currently, it is considered impossible due to fundamental physical laws.
Harlon Moss
Nov 29, 2023

Can a task be infeasible due to legal constraints?

Yes, legal restrictions can render a task infeasible.
Harlon Moss
Nov 29, 2023

Are perpetual motion machines impossible?

Yes, they are impossible as they violate the laws of thermodynamics.
Sara Rehman
Nov 29, 2023

Does impossible always mean forever?

In the context of fundamental principles or logical impossibilities, yes.
Harlon Moss
Nov 29, 2023

Is time travel impossible or infeasible?

Currently, it is considered impossible based on our understanding of physics.
Sara Rehman
Nov 29, 2023

Can changing technology render an infeasible task feasible?

Yes, technological advancements can turn infeasible tasks into feasible ones.
Harlon Moss
Nov 29, 2023

Can a task be temporarily infeasible?

Yes, a task can be infeasible under current conditions but may become feasible later.
Sara Rehman
Nov 29, 2023

Can budget constraints make a project infeasible?

Yes, budget limitations are a common reason for infeasibility.
Aimie Carlson
Nov 29, 2023

Is invisibility impossible?

Complete invisibility as depicted in fiction is currently impossible.
Sara Rehman
Nov 29, 2023

Can infeasibility be a matter of opinion?

While subjective factors can influence perceptions of feasibility, it often involves objective constraints.
Sara Rehman
Nov 29, 2023
About Author
Written by
Sara Rehman
Sara Rehman is a seasoned writer and editor with extensive experience at Difference Wiki. Holding a Master's degree in Information Technology, she combines her academic prowess with her passion for writing to deliver insightful and well-researched content.
Edited by
Huma Saeed
Huma is a renowned researcher acclaimed for her innovative work in Difference Wiki. Her dedication has led to key breakthroughs, establishing her prominence in academia. Her contributions continually inspire and guide her field.

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