English definition of “slow”
NOT FAST › moving, happening, or doing something without much speed: I'm making slow progress with the painting. He's a very slow reader.
be slow to do sth; be slow in doing sth › to take a long time to do something: The government has been slow to react to the problem. The ambulance was very slow in coming.
CLOCK › If a clock is slow, it shows a time that is earlier than the correct time.
BUSINESS › If business is slow, there are few customers.
NOT CLEVER › not quick at learning and understanding things
NOT EXCITING › not exciting: I find his films very slow.