1. (adj)rattle, rattling, rale a rapidseries of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders) "the death rattle"
2. (adj)fantastic, grand, howling(a), marvelous, marvellous, rattling(a), terrific, tremendous, wonderful, wondrous extraordinarily good or great ; used especially as intensifiers "a fantastic trip to the Orient"; "the film was fantastic!"; "a howling success"; "a marvelous collection of rare books"; "had a rattling conversation about politics"; "a tremendous achievement"
3. (adverb)alert, brisk, lively, merry, rattling, snappy, spanking, zippy quick and energetic "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"
4. (adverb)very, really, real, rattling used as intensifiers; `real' is sometimes used informally for `really'; `rattling' is informal "she was very gifted"; "he played very well"; "a really enjoyable evening"; "I'm real sorry about it"; "a rattling good yarn"
Definitions of rattling 
Afrikaans: vinnige, blitsige
Arabic: سَريع، مُجَلْجِل، مُحْدِث
Bulgarian: жив
Brazilian: apressado
Czech: svižný
German: rasend
Danish: høj
Greek: γοργός, ζωηρός
Spanish: vertiginoso, a gran veloc
Estonian: pöörane
Farsi: خیلی تند؛ پرشتاب
Finnish: nopea
French: (grande) vitesse
Hebrew: מָלֵא חָיִים, מָהִיר
Hindi: तीव्र, तेज
Croatian: brzo, snažno
Hungarian: erőteljes
Indonesian: cepat
Icelandic: snöggur, snar
Italian: veloce
Japanese: 速い
Korean: 매우 빠른
Lithuanian: smarkus
Latvian: liels; lielisks; kolosāls
Malay: laju
Dutch: levendig
Norwegian: svært rask; livlig, gøyal
Polish: dziarski
Persian: خیلی تند؛ پرشتاب
Pashto: ډير تيز
Portuguese: apressado
Romanian: alert; cu mare viteză
Russian: быстрый, энергичный
Slovak: svižný, rezký
Slovenian: hiter
Serbian: brz
Swedish: rasande
Thai: รวดเร็ว
Turkish: hızlı
Taiwanese: 快速的，輕快的
Ukrainian: швидкий
Urdu: تیز طرار
Vietnamese: nhanh; huyên náo
Chinese: 快速的，活跃的，很好的
