fastadjective
uk/fɑːst/us/fæst/fast adjective (QUICK)
A1 moving or happening quickly, or able to move or happen quickly:
If your watch or clock is fast, it shows a time that is later than the correct time.
specialized art used to refer to photographic film that allows you to take pictures when there is not much light or when things are moving quickly
used to describe something that is full of speed and excitement:
More examples
- The police car was going so fast, it must have been chasing someone.
- Isabel's heart was beating fast with fright.
- We were scrabbling over the rocks as fast as we could.
- I think the kitchen clock is fast.
- Given his age, he's a remarkably fast runner.
Thesaurus: synonyms and related words
Fast and rapid
- a mile a minute idiom
- apace
- as fast as your legs would carry you idiom
- as if it is going out of style idiom
- at a rate of knots idiom
- fleet
- have a heavy foot idiom
- high-speed
- hotfoot
- in the twinkling of an eye idiom
- Jack Robinson
- lickety-split
- lightning
- mile
- prompt
- rapid-fire
- smartly
- souped-up
- spread like wildfire idiom
- swift
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fast adjective (IMMORAL)
old-fashioned disapproving without moral principles:
Thesaurus: synonyms and related words
Morally wrong and evil
- abhorrent
- amoral
- anomie
- arch-villain
- be rotten to the core idiom
- canker
- darkly
- evil
- evildoer
- go to the bad idiom
- godless
- hanky-panky
- heinous
- scandalous
- seamy
- seedy
- shocking
- shockingly
- wicked
- wickedness
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fast adjective (FIXED)
If the colour of a piece of clothing is fast, the colour does not come out of the cloth when it is washed.
Thesaurus: synonyms and related words
Paints, dyes & pigments
- colourway
- distemper
- dye
- emulsion
- flaxseed oil
- glossy
- Indian ink
- ink
- pigment
- poster paint
- primer
- propanone
- rinse
- satin
- tint
- tinted
- varnished
- warpaint
- white spirit
- whitewash
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fastadverb
uk/fɑːst/us/fæst/A2 quickly:
More examples
- The police car was going so fast, it must have been chasing someone.
- "You always walk too fast for me, " she said complainingly.
- He drove so fast that I really felt my life was in danger.
- The seats in the hall were filling up fast.
- Poor standards of hygiene mean that the disease spreads fast.
Thesaurus: synonyms and related words
Fast and rapid
- a mile a minute idiom
- apace
- as fast as your legs would carry you idiom
- as if it is going out of style idiom
- at a rate of knots idiom
- fleet
- have a heavy foot idiom
- high-speed
- hotfoot
- in the twinkling of an eye idiom
- Jack Robinson
- lickety-split
- lightning
- mile
- prompt
- rapid-fire
- smartly
- souped-up
- spread like wildfire idiom
- swift
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Idiom(s)
fastadverb, adjective
uk/fɑːst/us/fæst/C2 firmly fixed:
Thesaurus: synonyms and related words
Tight and tightening
- close-fitting
- serried
- skinny
- snug
- stiffen
- strain
- taut
- tauten
- tense
- tension
- tight
- tighten
- tighten sth up
- tightly
- up
- vice-like
Idiom(s)
fastnoun [ C ]
uk/fɑːst/us/fæst/a period of time when you eat no food:
Thesaurus: synonyms and related words
Diets & dieting
- anorexia nervosa
- balanced diet
- bulimia
- caloric
- calorie-controlled
- calorific
- comfort eating
- complex carbohydrate
- crash diet
- deficiency disease
- dietetics
- intake
- low-calorie
- macrobiotic
- malnourished
- nutraceutical
- nutritional
- nutritious
- slimmer
- vegetarian
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fastverb [ I ]
uk/fɑːst/us/fæst/to eat no food for a period of time:
Thesaurus: synonyms and related words
Abstaining and refraining
- abstain
- abstemious
- abstention
- abstinence
- back off
- cut
- forborne
- give
- give (sth) up
- give up sth
- hors de combat
- keep
- keep (sb/sth) out of sth
- step
- step back
- stop
- stop short of sth idiom
- swear off sth
- touch
- wouldn't touch sth with a barge pole idiom
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