infeasible
Cannot be done
Infeasible means not capable of being done or accomplished—essentially a more formal synonym for impractical or unworkable.
The word appears most often in technical, business, or policy contexts: The project proved infeasible given budget constraints.
Something infeasible isn't merely difficult but fundamentally unachievable under current conditions.
Impossible to acquire
- unachievableCannot be accomplished
- unrealizableImpossible to achieve
- inconceivableBeyond mental grasp
- insurmountableImpossible to overcome
insuperable · unobtainable · undoable · hopeless · unthinkable · impassable · inaccessible · illusory
Impossible to execute
- unrealisticLacking basis in reality
- unviableIncapable of succeeding
- impracticableImpossible to implement
- untenableImpossible to maintain
unsustainable · unmanageable · inefficient · cumbersome · unwieldy · labor-intensive · nonviable · unimplementable
unattainable
Impossible to acquire
- unachievableCannot be accomplished
- unrealizableImpossible to achieve
- inconceivableBeyond mental grasp
insurmountable · insuperable · unobtainable · undoable · hopeless · unthinkable · impassable · inaccessible · illusory · utopian
unworkable
Impossible to execute
- unrealisticLacking basis in reality
- unviableIncapable of succeeding
- impracticableImpossible to implement
untenable · unsustainable · unmanageable · inefficient · cumbersome · unwieldy · labor-intensive · nonviable · unimplementable · unexecutable
- No-Gobanned, forbidden, off-limits, illegal, outlawed
infeasiblefeasible
Capable of being done
doable · achievable · attainable · possible · practicable