Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fast

1 sense of fast

Sense 1
fast, fasting -- (abstaining from food)
       => abstinence -- (act or practice of refraining from indulging an appetite)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb fast

2 senses of fast

Sense 1
fast -- (abstain from certain foods, as for religious or medical reasons; "Catholics sometimes fast during Lent")
       => abstain, refrain, desist -- (choose not to consume; "I abstain from alcohol")

Sense 2
fast -- (abstain from eating; "Before the medical exam, you must fast")
       => abstain, refrain, desist -- (choose not to consume; "I abstain from alcohol")

Antonyms of adj fast

10 senses of fast

Sense 1
fast (vs. slow) -- (acting or moving or capable of acting or moving quickly; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car")

slow (vs. fast) -- (not moving quickly; taking a comparatively long time; "a slow walker"; "the slow lane of traffic"; "her steps were slow"; "he was slow in reacting to the news"; "slow but steady growth")
        => bumper-to-bumper -- (used of traffic; "bumper-to-bumper traffic")
        => dilatory, laggard, poky, pokey -- (wasting time)
        => drawn-out -- ((used of speech) uttered slowly with prolonged vowels)
        => lazy -- (moving slowly and gently; "up a lazy river"; "lazy white clouds"; "at a lazy pace")
        => long-play, long-playing -- ((used of records) playing at a slower speed and for a longer time than earlier records)
        => slow-moving -- (moving slowly; "slow-moving cars")
        => sluggish, sulky -- (moving slowly; "a sluggish stream")

Sense 2
fast (vs. slow) -- ((used of timepieces) indicating a time ahead of or later than the correct time; "my watch is fast")

slow (vs. fast) -- ((used of timepieces) indicating a time earlier than the correct time; "the clock is slow")

Sense 3
fast (vs. slow) -- (at a rapid tempo; "the band played a fast fox trot")

slow (vs. fast) -- (at a slow tempo; "the band played a slow waltz")
        => adagio -- ((of tempo) leisurely)
        => andante -- ((of tempo) moderately slow)
        => lento -- ((of tempo) slow)
        => lentissimo -- ((of tempo) very slow)
        => largo -- (very slow in tempo and broad in manner)
        => larghetto -- ((of tempo) less slow and broad than largo)
        => larghissimo -- ((of tempo) as slow and broad as possible)
        => moderato -- ((of tempo) moderate)

Sense 4
fast -- ((of surfaces) conducive to rapid speeds; "a fast road"; "grass courts are faster than clay")

INDIRECT (VIA smooth) -> rough, unsmooth -- (having or caused by an irregular surface; "trees with rough bark"; "rough ground"; "rough skin"; "rough blankets"; "his unsmooth face")

Sense 5
fast -- (resistant to destruction or fading; "fast colors")

INDIRECT (VIA impervious) -> pervious -- (admitting of passage or entrance; "pervious soil"; "a metal pervious to heat")

Sense 6
debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous, fast -- (unrestrained by convention or morality; "Congreve draws a debauched aristocratic society"; "deplorably dissipated and degraded"; "riotous living"; "fast women")

INDIRECT (VIA immoral) -> moral -- (concerned with principles of right and wrong or conforming to standards of behavior and character based on those principles; "moral sense"; "a moral scrutiny"; "a moral lesson"; "a moral quandary"; "moral convictions"; "a moral life")

Sense 7
flying, quick, fast -- (hurried and brief; "paid a flying visit"; "took a flying glance at the book"; "a quick inspection"; "a fast visit")

INDIRECT (VIA hurried) -> unhurried -- (relaxed and leisurely; without hurry or haste; "people strolling about in an unhurried way"; "an unhurried walk"; "spoke in a calm and unhurried voice")

Sense 8
fast, firm, immobile -- (securely fixed in place; "the post was still firm after being hit by the car")

INDIRECT (VIA fixed) -> unfixed -- (not firmly placed or set or fastened)

Sense 9
firm, loyal, truehearted, fast (prenominal) -- (unwavering in devotion to friend or vow or cause; "a firm ally"; "loyal supporters"; "the true-hearted soldier...of Tippecanoe"- Campaign song for William Henry Harrison; "fast friends")

INDIRECT (VIA faithful) -> unfaithful -- (not true to duty or obligation or promises; "an unfaithful lover")

Sense 10
fast -- ((of a photographic lens or emulsion) causing a shortening of exposure time; "a fast lens")

INDIRECT (VIA causative) -> noncausative, noncausal -- (not causative)

Similarity of adj fast

10 senses of fast

Sense 1
fast (vs. slow) -- (acting or moving or capable of acting or moving quickly; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car")
       => accelerated -- (speeded up, as of an academic course; "in an accelerated program in school")
       => alacritous -- (quick and eager; "an alacritous response to the invitation")
       => blistering, hot, red-hot -- (very fast; capable of quick response and great speed; "a hot sports car"; "a blistering pace"; "got off to a hot start"; "in hot pursuit"; "a red-hot line drive")
       => double-quick -- ((of a marching cadence) very quick)
       => express -- (without unnecessary stops; "an express train"; "an express shipment")
       => fast-breaking -- (occurring rapidly as a series of events in rapid succession; "the broadcast was interrupted by a fast-breaking news story about the invasion")
       => fast-paced -- (of communication that proceeds rapidly; "a fast-paced talker"; "fast-paced fiction")
       => fleet, swift -- (moving very fast; "fleet of foot"; "the fleet scurrying of squirrels"; "a swift current"; "swift flight of an arrow"; "a swift runner")
       => high-speed, high-velocity -- (operating at high speed; "a high-speed food processor"; "a high-velocity shell")
       => hurrying, scurrying -- (moving with great haste; "affection for this hurrying driving...little man"; "lashed the scurrying horses")
       => immediate, prompt, quick, straightaway -- (performed with little or no delay; "an immediate reply to my letter"; "a prompt reply"; "was quick to respond"; "a straightaway denial")
       => instantaneous, instant (prenominal) -- (occurring with no delay; "relief was instantaneous"; "instant gratification")
       => meteoric -- (like a meteor in speed or brilliance or transience; "a meteoric rise to fame")
       => quick, speedy -- (accomplished rapidly and without delay; "was quick to make friends"; "his quick reaction prevented an accident"; "hoped for a speedy resolution of the problem"; "a speedy recovery"; "he has a right to a speedy trial")
       => rapid -- (done or occurring in a brief period of time; "a rapid rise through the ranks")
       => rapid, speedy -- (characterized by speed; moving with or capable of moving with high speed; "a rapid movement"; "a speedy car"; "a speedy errand boy")
       => smart -- (quick and brisk; "I gave him a smart salute"; "we walked at a smart pace")
       => winged -- (very fast; as if with wings; "on winged feet")
       => windy -- (resembling the wind in speed, force, or variability; "a windy dash home")
          Also See-> hurried#1; sudden#1

Sense 2
fast (vs. slow) -- ((used of timepieces) indicating a time ahead of or later than the correct time; "my watch is fast")

Sense 3
fast (vs. slow) -- (at a rapid tempo; "the band played a fast fox trot")
       => allegro -- ((of tempo) fast)
       => allegretto -- ((of tempo) faster than allegro)
       => andantino -- ((of tempo) moderately fast)
       => presto -- ((of tempo) very fast)
       => prestissimo -- ((of tempo) as fast as possible)
       => vivace -- ((of tempo) very fast and lively)

Sense 4
fast -- ((of surfaces) conducive to rapid speeds; "a fast road"; "grass courts are faster than clay")
       => smooth (vs. rough) -- (having a surface free from roughness or bumps or ridges or irregularities; "smooth skin"; "a smooth tabletop"; "smooth fabric"; "a smooth road"; "water as smooth as a mirror")

Sense 5
fast -- (resistant to destruction or fading; "fast colors")
       => impervious (vs. pervious), imperviable -- (not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument")

Sense 6
debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous, fast -- (unrestrained by convention or morality; "Congreve draws a debauched aristocratic society"; "deplorably dissipated and degraded"; "riotous living"; "fast women")
       => immoral (vs. moral) -- (deliberately violating accepted principles of right and wrong)

Sense 7
flying, quick, fast -- (hurried and brief; "paid a flying visit"; "took a flying glance at the book"; "a quick inspection"; "a fast visit")
       => hurried (vs. unhurried) -- (moving rapidly or performed quickly or in great haste; "a hurried trip to the store"; "the hurried life of a city"; "a hurried job")

Sense 8
fast, firm, immobile -- (securely fixed in place; "the post was still firm after being hit by the car")
       => fixed (vs. unfixed) -- (securely placed or fastened or set; "a fixed piece of wood"; "a fixed resistor")

Sense 9
firm, loyal, truehearted, fast (prenominal) -- (unwavering in devotion to friend or vow or cause; "a firm ally"; "loyal supporters"; "the true-hearted soldier...of Tippecanoe"- Campaign song for William Henry Harrison; "fast friends")
       => faithful (vs. unfaithful) -- (steadfast in affection or allegiance; "years of faithful service"; "faithful employees"; "we do not doubt that England has a faithful patriot in the Lord Chancellor")

Sense 10
fast -- ((of a photographic lens or emulsion) causing a shortening of exposure time; "a fast lens")
       => causative (vs. noncausative) -- (producing an effect; "poverty as a causative factor in crime")

Synonyms of adv fast

2 senses of fast

Sense 1
fast -- (quickly or rapidly (often used as a combining form); "how fast can he get here?"; "ran as fast as he could"; "needs medical help fast"; "fast-running rivers"; "fast-breaking news"; "fast-opening (or fast-closing) shutters")

Sense 2
fast, tight -- (firmly or closely; "held fast to the rope"; "her foot was stuck fast"; "held tight")

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