1. in a manner that produces a rapid series of short, sharp sounds
2. extremely; very
Usage: informal; chiefly British

Examples

• The old truck drove rattlingly down the cobblestone street.
• The windows shook rattlingly in the strong wind.
• She delivered a rattlingly good performance in the play.
• The machine worked rattlingly well despite its age.
• The chains hung rattlingly from the fence post.
• It was a rattlingly cold morning in December.