Found 2 items, similar to thunderously.
English → English (WordNet) Definition: thunderous thunderous adj 1: loud enough to cause (temporary) hearing loss [syn: deafening, earsplitting, roaring, thundery] 2: extremely ominous; “world events of thunderous import”
English → English (gcide) Definition: Thunderously Thunderous \Thun"der*ous\, a. [Written also thundrous.] 1. Producing thunder. [R.] [1913 Webster] How he before the thunderous throne doth lie. --Milton. [1913 Webster] 2. Making a noise like thunder; sounding loud and deep; sonorous. [1913 Webster] -- Thun"der*ous*ly, adv. [1913 Webster] [1913 Webster]