Dictionary Definition
thunderous adj
2 extremely ominous; "world events of thunderous
import"
User Contributed Dictionary
English
Adjective
thunderousSynonyms, Antonyms and Related Words
booming, cannonading, deafening, ear-piercing,
ear-rending, ear-splitting, earthshaking, forte, fortissimo, full, fulminating, loud, loud-sounding, loudish, noisy, pealing, piercing, plangent, resounding, ringing, roaring, rolling, rumbling, sonorous, stentoraphonic, stentorian, stentorious, thundering, thunderlike, thundery, tonitruant, tonitruous, tumultuous, volleying,
window-rattling