1. (adj.)slow moving or proceeding with little or less than usual speed: a slow train.
2. slow characterized by lack of speed: a slow pace.
3. slow taking or requiring a comparatively long time.
4. slow gradual: slow growth.
5. slow mentally dull: a slow child.
6. slow not readily disposed (usu. fol. by to or an infinitive): slow to anger.
7. slow burning or heating with little intensity: a slow oven.
8. slow slack; not busy: a slow stock market.
9. slow progressing or allowing progress at less than the usual or desired rate of speed: a slow worker; a slow road.
10. slow running at less than the proper rate of speed, as a clock.
11. slow dull or tedious: a slow party.
12. slow Photog. requiring long exposure, as by having a small lens diameter or low film sensitivity.
13. slow (of the surface of a race track) sticky from a recent rain and in the process of drying out.
14. (adv.)slow in a slow manner; slowly: Drive slow.
15. (v.t.)slow to make slow or slower (often fol. by up or down).
16. slow to reduce the progress of.
17. (v.i.)slow to slacken in speed (often fol. by up or down).
Etymology: (bef. 900; ME; OE slāw, c. Fris sleau, OS
Definition of 'slow'
Princeton's WordNet
1. (adj)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. (adj)slow at a slow tempo "the band played a slow waltz"
3. (adj)dense, dim, dull, dumb, obtuse, slow slow to learn or understand; lacking intellectualacuity "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"
4. (adj)slow (used of timepieces) indicating a time earlier than the correct time "the clock is slow"
5. (adj)boring, deadening, dull, ho-hum, irksome, slow, tedious, tiresome, wearisome so lacking in interest as to cause mental weariness "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"
6. (verb)dull, slow, sluggish (of business) not active or brisk "business is dull (or slow)"; "a sluggish market"
7. (verb)decelerate, slow, slow down, slow up, retard lose velocity; movemore slowly "The car decelerated"
8. (verb)slow, slow down, slow up, slack, slacken become slow or slower "Production slowed"
9. (adverb)slow, slow down, slow up cause to proceed more slowly "The illness slowed him down"
10. (adverb)slowly, slow, easy, tardily without speed (`slow' is sometimes used informally for `slowly') "he spoke slowly"; "go easy here--the road is slippery"; "glaciers move tardily"; "please go slow so I can see the sights"
11. (adverb)behind, slow of timepieces "the clock is almost an hour slow"; "my watch is running behind"
1. (adjective)slow ≠ fast, quick a slow bus; Progress on the building was slow.; slow economic growth; People were slow to understand the problem.
2. slow not busy or exciting a slow day at work
3. slow (of a watch or clock) showing a time that is earlier than the actual time Is that clock slow?
4. slow less intelligent than the average person He's a little slow.
5. (verb)slow to happen, go, or work with less speed, or to make sth do this The storm slowed down as it came into land.; The waves slowed the boat's progress.
6. slow to grow or develop at a slower rate, or to make sth do this Business slowed down in March.; Will the government attempt to slow economic growth?
7. (adverb)slow at a slow speed; = slowly Walk a little slower, please.
4. slow moving a short space in a relatively long time; not swift; not quick in motion; not rapid; moderate; deliberate; as, a slow stream; a slow motion
5. slow not happening in a short time; gradual; late
6. slow not ready; not prompt or quick; dilatory; sluggish; as, slow of speech, and slow of tongue
7. slow not hasty; not precipitate; acting with deliberation; tardy; inactive
8. slow behind in time; indicating a time earlier than the true time; as, the clock or watch is slow
9. slow not advancing or improving rapidly; as, the slow growth of arts and sciences
10. slow heavy in wit; not alert, prompt, or spirited; wearisome; dull
11. (verb)slow to render slow; to slacken the speed of; to retard; to delay; as, to slow a steamer
12. (verb)slow to go slower; -- often with up; as, the train slowed up before crossing the bridge
Definitions of slow 
Afrikaans: traag
Arabic: بَطيء
Bulgarian: бавен
Brazilian: lento
Czech: pomalý
German: langsam
Danish: langsom
Greek: αργός
Spanish: lento
Estonian: aeglane
Farsi: كند
Finnish: hidas
French: lent
Hebrew: אִיטִי
Hindi: धीमा, मन्द, मन्थर
Croatian: spor, polagan
Hungarian: lassú
Indonesian: lambat
Icelandic: hægur
Italian: lento
Japanese: 遅い
Korean: (속도 등이) 느린
Lithuanian: lėtas
Latvian: lēns; nesteidzīgs
Malay: perlahan
Dutch: langzaam
Norwegian: sakte, langsom, sein
Polish: wolny
Persian: كند
Pashto: پڅ (لكه په ذهن كې): ورو، 
Portuguese: lento
Romanian: lent
Russian: медленный, неспешный
Slovak: pomalý
Slovenian: počasen
Serbian: spor
Swedish: långsam, sakta
Thai: ช้า
Turkish: yavaş, ağır
Taiwanese: 慢的
Ukrainian: повільний, нешвидкий
Urdu: سست، دھیما
Vietnamese: chậm chạp
Chinese: 慢的
