insufferable

insufferable is an   Adverb

Definition:

[1] Incapable of being suffered, borne, or endured; insupportable; unendurable; intolerable; as, insufferable heat, cold, or pain; insufferable wrongs. Locke.

[2] Offensive beyond endurance; detestable. A multitude of scribblers who daily pester the world with their insufferable stuff. Dryden.

Synonyms: