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The definition of fast

28 Definitions of: fast

    1. adjective, acting or moving or capable of acting or moving quickly; swift
    2. adjective, accomplished in or lasting a short time
    3. adjective, adapted to or facilitating rapid movement
    4. adjective, requiring rapidity of action or movement
    5. adjective, (of a clock, etc) indicating a time in advance of the correct time
    6. adjective, given to an active dissipated life
    7. adjective, of or characteristic of such activity
    8. adjective, not easily moved; firmly fixed; secure
    9. adjective, firmly fastened, secured, or shut
    10. adjective, steadfast; constant (esp in the phrase fast friends)
    11. adjective, sport (of a playing surface, running track, etc) conducive to rapid speed, as of a ball used on it or of competitors playing or racing on it
    12. adjective, that will not fade or change colour readily
    13. adjective, a) proof against fading b) (in combination)
    14. adjective, photog a) requiring a relatively short time of exposure to produce a given density b) permitting a short exposure time
    15. adjective, cricket (of a bowler) characteristically delivering the ball rapidly
    16. adjective, glib or unreliable; deceptive
    17. adjective, sound; deep
    18. adjective, a deceptive or unscrupulous trick (esp in the phrase pull a fast one)
    19. adjective, fast worker a person who achieves results quickly, esp in seductions
    20. adverb, quickly; rapidly
    21. adverb, soundly; deeply
    22. adverb, firmly; tightly
    23. adverb, in quick succession
    24. adverb, in advance of the correct time
    25. adverb, in a reckless or dissipated way
    26. adverb, fast by or beside close or hard by; very near
    27. adverb, play fast and loose to behave in an insincere or unreliable manner
    28. interjection, archery (said by the field captain to archers) stop shooting!
    29. Show me some examples of this word: fast
    30. Show me the etymology of the word: fast
    1. verb, to abstain from eating all or certain foods or meals, esp as a religious observance
    2. noun, an act or period of fasting
    3. Show me some examples of this word: fast
    4. Show me the etymology of the word: fast
Synonyms: fast, diet, flying, sound, faithful, speed, reckless, determined, abstinence, abstain And more...
Antonyms: unstable, slow
 

From Collins

©HarperCollins 2008. Collins English Dictionary definition of fast