1. used as intensifiers; `real' is sometimes used informally for `really'; `rattling' is informal

    Synonyms : real, really, very
    Examples :
    • a rattling good yarn
  2. a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders)

    Synonyms : rale, rattle
    Type Of : noise
  3. quick and energetic

    Synonyms : alert, brisk, lively, merry, snappy, spanking, zippy
    Examples :
    • traveling at a rattling rate
  4. extraordinarily good or great; used especially as intensifiers

    Synonyms : fantastic, grand, howling, marvellous, marvelous, terrific, tremendous, wonderful, wondrous
    Examples :
    • had a rattling conversation about politics