grumbling

1. gerundparticiplepresentpresent participle and gerund of grumble

plural grumblings

1. complaining

   the grumblings of a bad-tempered man

   2 more examples

   For having submitted my ears to Acutilius for several days (and I think you know his style), I should scarcely have regarded it as a hardship to write you a letter describing his grumblings after patiently enduring the bore (and it was rather a bore, I can tell you) of hearing them.

   1920, Cicero, translated by Evelyn Shirley Shuckburgh, The Letters of Cicero: The Whole Extant Correspondence in Chronological Order, volume 1 (hardcover), London: G. Bell and Sons, Ltd., page 2

   The commissions paid on this transaction were high and gave rise to grumblings in Great Britain about a “banker's ramp.”

   1990, Randall Bennett Woods, A Changing of the Guard: Anglo-American Relations, 1941-1946, page 409

2. rumbling

comparative more grumbling · superlative most grumbling