<p><strong>Noun</strong></p><ul><li>excruciating or acute distress, suffering, or pain: the anguish of grief.</li><li>Synonyms: torture, torment, agony.</li><li>Antonyms: relief, comfort, delight.</li><li>a cause or occasion of keen distress or sorrow.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to inflict with distress, suffering, or pain.</li><li>(used without object) to suffer, feel, or exhibit anguish: to anguish over the loss of a loved one.</li></ul>