impossible

Definitions

Not able to occur, exist, or be done.

Extremely difficult to deal with or tolerate.

Not capable of being achieved or fulfilled.

Examples

It is impossible to finish this project by the end of the day.

She made it seem like an impossible task, but we completed it in an hour.

Nothing is truly impossible if you have enough determination.

Synonyms

unattainable unachievable impracticable unfeasible hopeless insurmountable unthinkable

Antonyms

possible achievable attainable feasible practicable realistic doable