Infeasible vs. Unfeasible — What's the Difference?
By Fiza Rafique & Maham Liaqat — Updated on May 3, 2024
"Infeasible" typically implies an impractical or impossible task due to logistical or inherent constraints, while "unfeasible" often suggests a lack of feasibility more subtly, possibly due to current circumstances.
Difference Between Infeasible and Unfeasible
Table of Contents
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Key Differences
"Infeasible" is commonly used when describing tasks or plans that are virtually impossible to execute, often due to fundamental flaws or limitations. On the other hand, "unfeasible" may refer to something that is currently not practical or achievable, perhaps due to temporary conditions or external factors.
In technical and formal contexts, "infeasible" is preferred to denote something that cannot be accomplished, whether in mathematics, engineering, or business planning, whereas "unfeasible" might appear in more general discussions where the feasibility is momentarily in question.
"Infeasible" often carries a stronger connotation of an absolute barrier that cannot be overcome with current technology or resources, while "unfeasible" might simply mean inconvenient or impractical at the moment.
When evaluating projects or proposals, declaring them "infeasible" usually suggests a need to go back to the drawing board, while labeling them as "unfeasible" might invite temporary setbacks or calls for revisions.
In usage trends, "infeasible" appears more frequently in academic and professional documents, emphasizing its more technical and definitive implication, whereas "unfeasible" is less common and often seen in less formal or less technical contexts.
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Comparison Chart
Definition
Not possible to do or achieve
Not practical or convenient to do at a given time
Context of Usage
Technical, academic, formal
General, informal
Connotation
Strong impossibility due to inherent limitations
Temporary or circumstantial impracticality
Common Fields of Use
Mathematics, engineering, project management
Everyday language, less formal discussions
Example of Usage
"The solution is infeasible with current technology"
"The plan is unfeasible due to budget constraints"
Compare with Definitions
Infeasible
A task or plan that cannot be accomplished.
It's infeasible to build a bridge in this location due to environmental restrictions.
Unfeasible
Currently impractical or inconvenient.
Expanding our team this quarter is unfeasible.
Infeasible
Not capable of being done or used.
The algorithm is infeasible for real-time processing due to its complexity.
Unfeasible
Not a practical choice at the moment.
Considering the high costs, it's unfeasible to switch suppliers now.
Infeasible
Impossible to perform in the existing conditions.
Completing the project in one week is infeasible.
Unfeasible
Temporarily impossible to carry out.
It's unfeasible to start the construction during the rainy season.
Infeasible
Not practical due to fundamental limitations.
With current materials, achieving such a design is infeasible.
Unfeasible
Lacking feasibility in the current scenario.
It's unfeasible to implement such changes without adequate funding.
Infeasible
Unlikely to be successfully executed.
It's infeasible to expect a full recovery without any medical intervention.
Unfeasible
Not suitable under the present circumstances.
Hosting an outdoor event in this weather is unfeasible.
Infeasible
Not feasible; impracticable.
Unfeasible
Infeasible: not feasible.
Infeasible
Not feasible.
Unfeasible
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
Infeasible
Not capable of being done or accomplished; impracticable.
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
Common Curiosities
Not a practical choice at the moment.
Considering the high costs, it's unfeasible to switch suppliers now.
Lacking feasibility in the current scenario.
It's unfeasible to implement such changes without adequate funding.
Can "infeasible" decisions be overturned in a corporate environment?
Overturning an "infeasible" decision usually requires addressing the fundamental reasons behind the initial judgment, which might involve significant changes.
Currently impractical or inconvenient.
Expanding our team this quarter is unfeasible.
Is "unfeasible" often found in business communications?
Yes, it appears in business communications, typically to describe projects or strategies currently impractical due to constraints like budget or time.
Not suitable under the present circumstances.
Hosting an outdoor event in this weather is unfeasible.
Temporarily impossible to carry out.
It's unfeasible to start the construction during the rainy season.
xWhat impact does labeling a project "infeasible" have?
Labeling a project as "infeasible" can lead to its cancellation or a significant revision of its scope or methods.
What synonyms can be used in place of "unfeasible"?
Synonyms include impractical, unworkable, nonviable, and unsustainable.
How should one communicate an "infeasible" finding in a professional setting?
Clearly and objectively outline the reasons why the task or project is infeasible, providing evidence and possibly suggesting alternatives if applicable.
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Written by
Fiza RafiqueFiza Rafique is a skilled content writer at AskDifference.com, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
Co-written by
Maham Liaqat
