adjective
faster; -est
[more ~; most ~]
moving or able to move quickly
happening quickly :taking a short amount of time
operating quickly
doing something or able to do something quickly
allowing movement at a great speed
of a clock or watch :showing a time that is later than the correct time
photography :allowing photographs to be taken very quickly or when there is very little light
informal
tricky and unfair
earned or gotten quickly and often in a dishonest way
quick and not safe to trust
old-fashioned + humorous
actively seeking excitement or pleasure :wild
b of women :very willing to have sex
placed, tied, or attached in a way that is not easily moved
closed tightly
impossible to change - used in the phrase hard and fast
not likely to fade
very loyal or faithful
fast and furious
in a very fast and forceful way :with one thing following another very quickly
The phrase fast and furious is used both as an adjective and as an adverb.
play fast and loose
adverb
faster; -est
with great speed
in a quick and intelligent way
quickly and in a way that is meant to deceive or persuade someone
in a way that is not easily moved or changed
fast and furious
fast asleep
going/getting nowhere fast
informal
To be going/getting nowhere fast is to be failing to make progress or to produce a desired result.
not so fast
informal - used in speech to say that you disagree with what someone has said or to tell someone to stop or slow down
verb
fasts; fasted; fasting
[no obj] :to eat no food for a period of time
noun
plural fasts
[count] :a period of time when you do not eat any food :a time of fasting