unfeasible

While some student organisations welcomed Nandi-Ndaitwah's announcement, others have criticised it as unfeasible and vague.

The zoo said that it’s currently unfeasible to replace Billy and Tina’s two former herd members, who recently died, and that elephants need to live in larger social groups, so officials opted to move them.

However, increased rent and energy bills have made it financially unfeasible.

On the occasions when people cannot be persuaded, and agreeing to disagree becomes unfeasible, often estrangement is more than inevitable; it is ultimately the happiest possible result for everyone involved.

Redeveloping oilfields in other areas is difficult, with some observers saying what reserves remain are depleted to the point where further extraction would be economically unfeasible.