Entry 3 senses · 2 variants Webster, 1913

Thundering

· Thun·der·ing · IPA /θˈʌndərɪŋ/

01 a. Emitting thunder.

1.
Emitting thunder.
“Roll the thundering chariot o'er the ground.” — J. Trumbull.
2.
Very great; -- often adverbially.[Slang]

02 n. Thunder.