Definition

1. Adjective:
   • Not capable of being carried out or put into practice: Describes a plan, idea, or task that is impossible or extremely difficult to accomplish given current circumstances, resources, or knowledge.

Usage

The adjective "unfeasible" is used to describe proposals, projects, or actions that are not practical or realistic. It is a formal term often used in technical, business, or academic contexts to decisively reject an idea as not workable. It typically precedes a noun or follows a linking verb like "is," "seems," or "proved."

Examples

• The committee rejected the proposal, deeming it unfeasible due to the astronomical cost.
• Building a bridge across the entire ocean is an unfeasible idea.
• The plan sounded good in theory but proved unfeasible in practice.
• Given the two-day deadline, completing the report is unfeasible.

Advanced Usage

• "to deem something unfeasible": to officially judge or consider something as not possible to do.
  • The engineers deemed the construction project unfeasible without additional funding.
• "to render something unfeasible": to cause something to become impossible to carry out.
  • The sudden shortage of materials rendered our original timeline unfeasible.

Variants and Related Words

• Feasible (adj): Able to be done easily or conveniently; possible and practical. (Antonym)
  • The new software design is both innovative and feasible.
• Feasibility (n): The state or degree of being easily or conveniently done.
  • A feasibility study was conducted before the project began.
• Impracticable (adj): Impossible in practice to do or carry out. (Very close synonym, often used interchangeably with "unfeasible").
  • The route was deemed impracticable for large vehicles.

Synonyms

• Impractical: Not adapted for use or action; not sensible or realistic.
• Unworkable: Not able to function or be carried out successfully.
• Impossible: Not able to occur, exist, or be done.

Antonyms

• Feasible: Possible to do easily or conveniently.
• Practical: Of or concerned with the actual doing or use of something rather than with theory and ideas; feasible.
• Workable: Able to be carried out or put into operation successfully.

Related Idioms and Phrases

• "A pipe dream": A hope or plan that is impossible to achieve or not practical.
  • His idea of becoming a billionaire by next year is just a pipe dream; it's completely unfeasible.
• "Dead in the water": An idea or project that cannot possibly succeed or proceed.
  • Without the main investor, the new venture is dead in the water.

Adjective

1. 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