ACUTE

brief and severe. —DMSMH Glossary (app. 14.7.90)

brief and severe.severe, but of short duration.sharp or severe in effect; intense.severe, but of short duration. Sees a child coughing and whooping and coughing and just having a terrible time, and turns around very learnedly to the mother and says, "Bronchitis-acute," and walks away. -- Scientology and Effective Knowledge

immediate, right now. It doesn't mean exaggerated. Medically it means simply right now, and rather temporary. (SH Spec 31, 6401C28)