2) 膨大ぼうだい #6,220 Inflections of 膨大 Class Na-adjective Stem Inflected ending ✕ Link copied! Common N2 ぼうだい [0] Meaning Shirabe ① Na-adjective huge; vast; enormous; colossal; extensive; large インテル社しゃはその発明はつめいで膨大ぼうだいな特許料とっきょりょうを得えている。 Intel gets a huge royalty from the invention. ② Noun Suru verb Intransitive verb swelling; expansion Only applies to 膨大 Kanji 膨 ボウ swell, get fat, thick 大 ダイ large, big Forms 膨大#6,220膨大ぼうだい厖大#98,501厖大ぼうだい尨大#146,058尨大ぼうだいぼうだいぼうだい