(1):

(a.) Turbulent; violent; as, a tumultuous speech.

(2):

(a.) Conducted with disorder; noisy; confused; boisterous; disorderly; as, a tumultuous assembly or meeting.

(3):

(a.) Agitated, as with conflicting passions; disturbed.

(4):

(a.) Full of tumult; characterized by tumult; disorderly; turbulent.