1. present participle of thunder#English|thunder
   • 1749, [John Cleland], “(Please specify the letter or volume)”, in Memoirs of a Woman of Pleasure [Fanny Hill], London: Printed [by Thomas Parker] for G. Fenton [i.e., Fenton and Ralph Griffiths] […], OCLC 731622352 ↗:

     ...Mr. Crofts (that was the name of my brute) was gone out of the house, after waiting till he had tired his patience for Mrs. Brown's return, they came thundering up-stairs...

thundering

1. Of, pertaining to, or accompanied by thunder.
2. Producing a noise or effect like thunder; thunderous.
3. (colloquial) Very great; extraordinary.
   • G. K. Chesterton

     “I think it had a thundering lot to do with the story I am considering now,” said Father Brown.

thundering (plural thunderings)

1. A loud percussive sound, like thunder.
2. (archaic) A thunderstorm.