brisk
brisk /brɪsk/
quick; busy
Example: a brisk walk


fast
fast /fɑːst/
(adj) moving or able to move quickly
Example: The car runs fast


gradual
gradual /ˈɡrædʒuəl/
(adj) happening slowly over a long period; not sudden
Example: Recovery from the disease is very gradual.


hasty
hasty /ˈheɪsti/
said, made or done very quickly, especially when this has bad results
Example:


prompt
prompt /prɒmpt/
(v) to make somebody decide to do something; to cause something to happen
Example: The thought of her daughter's wedding day prompted her to lose some weight.


quick
quick /kwɪk/
(adj) done with speed; taking or lasting a short time
Example: She gave him a quick glance.


rapid
rapid /ˈræpɪd/
(adj) happening quickly or in a short period of time
Example: The patient made a rapid recovery.


slow
slow /sləʊ/
(adj) not moving, acting or done quickly; taking a long time; not fast
Example: Collecting data is a painfully slow process.


speed
speed /spiːd/
(n) the rate at which somebody/something moves or travels
Example: There are speed restrictions on this road.


speedy
speedy /ˈspiːdi/
(adj) happening or done quickly or without delay
Example: We need to make a speedy decision.


swift
swift /swɪft/
(n) happening or done quickly and immediately; doing something quickly
Example: