Антонимом a thunderous

gentle low soft quiet hushed weak silent faint subdued muffled soundless noiseless muted inaudible low-pitched indistinct dull stilly stilled incomplete moderate restrained calm whispered hushful stifled softened mumbled needy trivial light subtle still tranquil slight thin unhearable lowered quieted tinny inarticulate unclear imperceptible suppressed quietened low-key indiscernible flat unintelligible deadened murmured mellow mute toned down

weak powerless impotent fragile flaccid frail strengthless unsteady weakened anaemic anemic debilitated drained effete enervated exhausted faint feeble flimsy floppy forceless gentle impuissant lackadaisical scrawny sickly tired torpid weakly infirm insubstantial irresolute languid languorous limp shaky sluggish spent spindly wobbly prostrate weedy mild soft wimpish

harmonious harmonising harmonizing melodious musical euphonious quiet sweet

unthreatening auspicious bright comforting encouraging favorable favourable promising propitious reassuring away distant far good kind nice pleasant remote assisting helping aiding

gentle light mild temperate mellow placid pleasant moderate modest tender genial subdued delicate harmless calm serene peaceful tranquil balmy slow clement soft equable quiet halcyon tame warm faint slight zephyr-like soothing lenient softened muted sensitive weak affable easygoing velvetlike sedate velvety fine relaxed low smooth subtle benign dulcet silky low-pressure laid-back

motionless still stationary immobile inert unmoving unstirring lifeless steadfast without moving at rest at a halt like a statue

athwart atilt a time a tinge of atingle at intervals a throw a throng at home with at home athletic shoes athletic shoe