- making or given to making a lot of noise；full of or characterized by noise
- 1. making or given to making a lot of noise a noisy, giggling group of children diesel cars can be very noisy 同義詞 反義詞
- ▪ full of or characterized by noise the pub was crowded and noisy
- ▪ stridently seeking to attract attention to one's views noisy pressure groups
- 2. technical accompanied by or introducing random fluctuations that obscure the real signal or data.