Definitions:
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