infeasibility
Beyond practical reach
Infeasibility is the quality of being impossible or impractical to accomplish.
The term appears most often in technical contexts—engineering, project management, economics—where constraints make a proposed solution unworkable: The study demonstrated the infeasibility of the original timeline.
Something may be infeasible due to cost, physics, logistics, or other limiting factors.
Impossible to acquire
- unachievableCannot be accomplished
- unrealizableImpossible to achieve
- impracticableImpossible to implement
- undoableCapable of being reversed
insurmountable · insuperable · inconceivable · unviable · impossible · hopeless · futile · unthinkable
Impossible to execute
- impracticalNot suited for use
- unrealisticLacking basis in reality
- unsustainableCannot be maintained indefinitely
- untenableImpossible to maintain
nonviable · inoperable · dysfunctional · ineffective · unusable · unmanageable · flawed · defective
Obstruction preventing passage
- hindranceBarrier to progress
- impedimentThing that obstructs progress
- roadblockObstruction across a road
- stumbling blockObstacle causing difficulty
bottleneck · constraint · limitation · restriction · hurdle · complication · snag · setback
Comparing expenditure to return
- risk assessmentEvaluating likelihood of harm
- counterexampleInstance disproving a claim
- logical contradictionMutually exclusive claims combined
- reductio ad absurdumDisproof by absurd consequence
boundary conditions · limiting factor · trade-off · diminishing returns
unattainable
Impossible to acquire
- unachievableCannot be accomplished
- unrealizableImpossible to achieve
- impracticableImpossible to implement
undoable · insurmountable · insuperable · inconceivable · unviable · impossible · hopeless · futile · unthinkable · unreasonable
unworkable
Impossible to execute
- impracticalNot suited for use
- unrealisticLacking basis in reality
- unsustainableCannot be maintained indefinitely
untenable · nonviable · inoperable · dysfunctional · ineffective · unusable · unmanageable · flawed · defective · faulty
barrier
Obstruction preventing passage
- hindranceBarrier to progress
- impedimentThing that obstructs progress
- roadblockObstruction across a road
stumbling block · bottleneck · constraint · limitation · restriction · hurdle · complication · snag · setback · encumbrance
cost-benefit
Comparing expenditure to return
- risk assessmentEvaluating likelihood of harm
- counterexampleInstance disproving a claim
- logical contradictionMutually exclusive claims combined
reductio ad absurdum · boundary conditions · limiting factor · trade-off · diminishing returns
infeasibilityfeasibility
Potential for success
practicability · workability · feasibleness · achievability · viability
infeasibilitypossibility
State of being achievable
plausibility · conceivability · potentiality · likelihood · probability
feasible, feasibility, infeasible, unfeasible, feasibly, unfeasibility