A tumultuous reaction to something is very noisy, because the people involved are very happy or excited. Delegates greeted the news with tumultuous applause
A tumultuous event or period of time involves many exciting and confusing events or feelings. the tumultuous changes in Eastern Europe It's been a tumultuous day at the international trade negotiations in Brussels
characterized by unrest or disorder or insubordination; "effects of the struggle will be violent and disruptive"; "riotous times"; "these troubled areas"; "the tumultuous years of his administration"; "a turbulent and unruly childhood"