Fast vs. Slow

Difference Between Fast and Slow
Fastadjective
(dated) Firmly or securely fixed in place; stable.
That rope is dangerously loose. Make it fast!Slowadjective
Taking a long time to move or go a short distance, or to perform an action; not quick in motion; proceeding at a low speed.
a slow train;a slow computerFastadjective
Firm against attack; fortified by nature or art; impregnable; strong.
Slowadjective
Not happening in a short time; spread over a comparatively long time.
Fastadjective
(of people) Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)
Slowadjective
Of reduced intellectual capacity; not quick to comprehend.
Fastadjective
Moving with great speed, or capable of doing so; swift, rapid.
I am going to buy a fast car.Slowadjective
Not hasty; not tending to hurry; acting with deliberation or caution.
Fastadjective
Causing unusual rapidity of play or action.
a fast racket, or tennis court; a fast track; a fast billiard table; a fast dance floorSlowadjective
(of a clock or the like) Behind in time; indicating a time earlier than the true time.
That clock is slow.Fastadjective
Able to transfer data in a short period of time.
Slowadjective
Lacking spirit; deficient in liveliness or briskness.
Fastadjective
Deep or sound (of sleep); fast asleep (of people).
Slowadjective
(of a period of time) Not busy; lacking activity.
It was a slow news day, so the editor asked us to make our articles wordier.I'm just sitting here with a desk of cards, enjoying a slow afternoon.Fastadjective
(of dyes or colours) Not running or fading when subjected to detrimental conditions such as wetness or intense light; permanent.
All the washing has come out pink. That red tee-shirt was not fast.Slowverb
(transitive) To make (something) run, move, etc. less quickly; to reduce the speed of.
Fastadjective
(obsolete) Tenacious; retentive.
Slowverb
(transitive) To keep from going quickly; to hinder the progress of.
Fastadjective
(dated) Having an extravagant lifestyle or immoral habits.
a fast womanSlowverb
(intransitive) To become slow; to slacken in speed; to decelerate.
Fastadjective
Ahead of the correct time or schedule.
There must be something wrong with the hall clock. It is always fast.Slownoun
Someone who is slow; a sluggard.
Fastadjective
(of photographic film) More sensitive to light than average.
Slownoun
(music) A slow song.
Fastadverb
In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .
Hold this rope as fast as you can.Slowadverb
Slowly.
That clock is running slow.Fastadverb
(of sleeping) Deeply or soundly .
He is fast asleep.Slowverb
lose velocity; move more slowly;
The car deceleratedFastadverb
Immediately following in place or time; close, very near .
The horsemen came fast on our heels.Slowverb
become slow or slower;
Production slowedFastadverb
Quickly, with great speed; within a short time .
Do it as fast as you can.Slowverb
cause to proceed more slowly;
The illness slowed him downFastadverb
Ahead of the correct time or schedule.
I think my watch is running fast.Slowadjective
not moving quickly; taking a comparatively long time;
a slow walkerthe slow lane of trafficher steps were slowhe was slow in reacting to the newsslow but steady growthFastnoun
A train that calls at only some stations it passes between its origin and destination, typically just the principal stations
Slowadjective
at a slow tempo;
the band played a slow waltzFastnoun
The act or practice of abstaining from food or of eating very little food.
Slowadjective
slow to learn or understand; lacking intellectual acuity;
so dense he never understands anything I say to himnever met anyone quite so dimalthough dull at classical learning, at mathematics he was uncommonly quickdumb officials make some really dumb decisionshe was either normally stupid or being deliberately obtuseworked with the slow studentsFastnoun
The period of time during which one abstains from or eats very little food.
Lent and Ramadan are fasts of two religions.Slowadjective
(used of timepieces) indicating a time earlier than the correct time;
the clock is slowFastinterjection
(archery) Short for "stand fast", a warning not to pass between the arrow and the target
Slowadjective
so lacking in interest as to cause mental weariness;
a boring evening with uninteresting peoplethe deadening effect of some routine tasksa dull playhis competent but dull performancea ho-hum speaker who couldn't capture their attentionwhat an irksome task the writing of long letters istedious days on the trainthe tiresome chirping of a cricketother people's dreams are dreadfully wearisomeFastverb
(intransitive) To restrict one’s personal consumption, generally of food, but sometimes other things, in various manners (totally, temporally, by avoiding particular items), often for religious or medical reasons.
Muslims fast during Ramadan and Catholics during Lent.Slowadjective
(of business) not active or brisk;
business is dull (or slow)a sluggish marketFastnoun
abstaining from food
Slowadverb
without speed (`slow' is sometimes used informally for `slowly');
he spoke slowlygo easy here--the road is slipperyglaciers move tardilyplease go slow so I can see the sightsFastverb
abstain from certain foods, as for religious or medical reasons;
Catholics sometimes fast during LentSlowadverb
of timepieces;
the clock is almost an hour slowmy watch is running behindFastverb
abstain from eating;
Before the medical exam, you must fastFastadjective
acting or moving or capable of acting or moving quickly;
fast filmon the fast track in schoolset a fast pacea fast carFastadjective
(used of timepieces) indicating a time ahead of or later than the correct time;
my watch is fastFastadjective
at a rapid tempo;
the band played a fast fox trotFastadjective
(of surfaces) conducive to rapid speeds;
a fast roadgrass courts are faster than clayFastadjective
firmly fastened or secured against opening;
windows and doors were all fasta locked closetleft the house properly securedFastadjective
resistant to destruction or fading;
fast colorsFastadjective
unrestrained by convention or morality;
Congreve draws a debauched aristocratic societydeplorably dissipated and degradedriotous livingfast womenFastadjective
hurried and brief;
paid a flying visittook a flying glance at the booka quick inspectiona fast visitFastadjective
securely fixed in place;
the post was still firm after being hit by the carFastadjective
unwavering in devotion to friend or vow or cause;
a firm allyloyal supportersthe true-hearted soldier...of Tippecanoefast friendsFastadverb
quickly or rapidly (often used as a combining form);
how fast can he get here?ran as fast as he couldneeds medical help fastfast-running riversfast-breaking newsfast-opening (or fast-closing) shuttersFastadverb
firmly or tightly;
held fast to the ropeher foot was stuck fastheld tight