| Noun | 1. | fast - abstaining from foodabstinence - act or practice of refraining from indulging an appetite dieting, diet - the act of restricting your food intake (or your intake of particular foods) hunger strike - a voluntary fast undertaken as a means of protest Ramadan - (Islam) a fast (held from sunrise to sunset) that is carried out during the Islamic month of Ramadan | |
| Verb | 1. | fast - abstain from certain foods, as for religious or medical reasons; "Catholics sometimes fast during Lent"diet - follow a regimen or a diet, as for health reasons; "He has high blood pressure and must stick to a low-salt diet" | |
| 2. | fast - abstain from eating; "Before the medical exam, you must fast"diet - eat sparingly, for health reasons or to lose weight | |
| Adj. | 1. | fast - 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"expedited - having been hastened to completion sudden - happening without warning or in a short space of time; "a sudden storm"; "a sudden decision"; "a sudden cure" hurried - moving rapidly or performed quickly or in great haste; "a hurried trip to the store"; "the hurried life of a city"; "a hurried job" slow - 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" | |
| 2. | fast - (used of timepieces) indicating a time ahead of or later than the correct time; "my watch is fast"slow - (used of timepieces) indicating a time earlier than the correct time; "the clock is slow" | |
| 3. | fast - at a rapid tempo; "the band played a fast fox trot"music - an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner slow - at a slow tempo; "the band played a slow waltz" | |
| 4. | fast - (of surfaces) conducive to rapid speeds; "a fast road"; "grass courts are faster than clay"smooth - 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" | |
| 5. | fast - firmly fastened or secured against opening; "windows and doors were all fast"; "a locked closet"; "left the house properly secured"fastened - firmly closed or secured; "found the gate fastened"; "a fastened seatbelt" | |
| 6. | fast - resistant to destruction or fading; "fast colors"imperviable, impervious - not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument" | |
| 7. | fast - unrestrained by convention or morality; "Congreve draws a debauched aristocratic society"; "deplorably dissipated and degraded"; "riotous living"; "fast women"immoral - violating principles of right and wrong | |
| 8. | fast - hurried and brief; "paid a flying visit"; "took a flying glance at the book"; "a quick inspection"; "a fast visit"hurried - moving rapidly or performed quickly or in great haste; "a hurried trip to the store"; "the hurried life of a city"; "a hurried job" | |
| 9. | fast - securely fixed in place; "the post was still firm after being hit by the car"fixed - securely placed or fastened or set; "a fixed piece of wood"; "a fixed resistor" | |
| 10. | fast - 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 - 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" | |
| Adv. | 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" | |
| 2. | fast - firmly or tightly; "held fast to the rope"; "her foot was stuck fast"; "held tight" | |