unworkable

Definitions

Not capable of being put into practice successfully or effectively.

Difficult or impossible to manage, operate, or deal with.

Examples

The committee rejected the proposal, claiming that the suggested timeline was completely unworkable.

After several failed attempts to fix the engine, the mechanics concluded that the design was fundamentally unworkable.

Synonyms

impractical infeasible impossible unachievable nonviable impracticable unfeasible

Antonyms

practical feasible workable viable achievable realistic attainable