Definitions for: Thundering

[adj] extraordinarily big or impressive; "a thundering success"; "the thundering silence of what was left unsaid"
[adj] sounding like thunder; "the thundering herd"

Webster (1913) Definition: Thun"der*ing, a.
1. Emitting thunder.

Roll the thundering chariot o'er the ground. --J.
Trumbull.

2. Very great; -- often adverbially. [Slang] --
Thun"der*ing*ly, adv.

Thun"der*ing, n.
Thunder. --Rev. iv. 5.

Synonyms: impressive, noisy