gaya-gaya
The buzzing, lively noise of many people talking at once. Creates an atmosphere of bustling energy, sometimes chaotic.
💡A busy school cafeteria at lunch — 'The cafeteria was gaya-gaya with students.'
教室はがやがやとうるさかった。
The classroom was noisily gaya-gaya.
The restaurant was so ___ we could barely hear each other.
レストランが○○していて、お互いの声が聞こえなかった。