fast
/fɑːst//fæst//fæst/noun
Definitions
A train that calls at only some stations it passes between its origin and destination, typically just the principal stations
Synonyms:expressexpress trainAntonyms:localslow trainstopper
adjective
Definitions
Firmly or securely fixed in place; stable.
Example: That rope is dangerously loose. Make it fast!
Synonyms:firmimmobilesecurestablestucktightAntonyms:looseFirm against attack; fortified by nature or art; impregnable; strong.
Synonyms:fortifiedimpenetrableAntonyms:penetrableweak(of people) Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)
Moving with great speed, or capable of doing so; swift, rapid.
Example: I am going to buy a fast car.
Synonyms:quickrapidspeedy
adverb
Definitions
In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .
Example: Hold this rope as fast as you can.
Synonyms:firmlysecurelytightlyAntonyms:loosely(of sleeping) Deeply or soundly .
Example: He is fast asleep.
Synonyms:deeplyAntonyms:lightlyImmediately following in place or time; close, very near .
Example: Fast by the sturdy batsman the ball unheeded sped. / That ain't my style, said Casey. Strike one, the umpire said.
Quickly, with great speed; within a short time .
Example: Do it as fast as you can.
Synonyms:quicklyrapidlyspeedilyswiftlyAntonyms:slowly
interjection
Definitions
Short for "stand fast", a warning not to pass between the arrow and the target
Antonyms:loose