insufferable

Difficult or impossible to endure; intolerable.

Not sufferable; not to be endured; intolerable; unbearable: as, insufferable cold or heat; insufferable wrongs.

Incapable of being suffered, borne, or endured; insupportable; unendurable; intolerable

Offensive beyond endurance; detestable.

Not sufferable; very difficult or impossible to endure.

(used of persons or their behavior) unbearably arrogant or conceited

too extreme to bear