The Oxford Thesaurus An A-Z Dictionary of Synonyms - anguish n.

1) suffering, pain, agony, torment, torture, misery: She endured the anguish of toothache rather than go to the dentist. 2 suffering, grief, distress, woe, anxiety: He underwent terrible anguish in the waiting-room till the surgeon arrived. --v. 3) disturb, upset, distress, afflict, trouble; torment, torture: The anguished cries of prisoners could be heard.