Synonyms and related words :
baritone, bass, cavernous, cinerary, contralto, deep, deep-echoing, deep-pitched, deep-toned, deepmouthed, dirgelike, dismal, epitaphic, exequial, feral, funebrial, funebrious, funebrous, funeral, funerary, funereal, grave, heavy, hollow, low, low-pitched, mortuary, mournful, necrological, obituary, obsequial, reverberant