Pronunciation: (tOO-mul'chOO-us, tyOO-), [key]
1. full of tumult or riotousness; marked by disturbance and uproar: a tumultuous celebration.
2. raising a great clatter and commotion; disorderly or noisy: a tumultuous crowd of students.
3. highly agitated, as the mind or emotions; distraught; turbulent.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.