Moving or operating, or designed to do so, only at a low speed; not quick or fast. (of a clock or watch) showing a time earlier than the correct time. Not prompt to understand, think, or learn. Uneventful and rather dull. (of a film) needing long exposure. (of a fire or oven) burning or giving off heat gently. At a slow pace; slowly. Reduce one's speed or the speed of a vehicle or process.