莫大|ばくだいbakudai[0]heiban (flat)

1. na-adjectivevast; huge; immense; enormous; colossal
   ジョンは莫大ばくだいな財産ざいさんを相続そうぞくした。↗

   John inherited a large fortune.
2. nounmalva nut (Scaphium affine)

• Synonym膨大ぼうだいNeutralFor huge quantity or scale, as in 「膨大な資料」; it stresses sheer volume of material, while 「莫大」 mostly modifies money and losses.
• Synonym甚大じんだいWrittenWritten style for an extreme degree, chiefly the severity of damage or losses, as in 「甚大な被害」; it stresses how serious something bad is.
• Synonym巨大きょだいNeutralFor tangible hugeness of size or scale, as in 「巨大な建物」; it describes physical bulk, while 「莫大」 is about quantities.
• Synonym絶大ぜつだいNeutralFor matchless magnitude, mostly modifying influence or popularity, as in 「絶大な人気」; it leans toward abstract power.
• SynonymおびただしいWrittenWritten style for enormous numbers, as in 「夥しい数の人」; it stresses sheer multitude.
• Synonym大きいおおきいNeutralThe most common word for big in general; 「莫大」 is reserved for quantities or sums so large they astound.
• Synonym大いなるおおいなるWrittenA written-style pre-noun word meaning great or grand, as in 「大いなる希望」; it carries a solemn, lofty tone.
• Synonym極大きょくだいWrittenMeans extremely large, and in mathematics a local maximum; found mainly in academic writing.
• Synonym至大しだいWrittenWritten word for boundless greatness; rare today, with 「巨大」 or 「莫大」 preferred in everyday use.
• Related並み外れなみはずれNeutralFor far exceeding the average, as in 「並外れた才能」; it mostly modifies ability or physical strength.
• Related非常ひじょうNeutralAs an adjectival noun it means extreme in degree, as in 「非常な努力」; it stresses intensity, while 「莫大」 stresses quantity.
• Related異常いじょうNeutralMeans abnormal or unusual, as in 「異常な暑さ」; the focus is strangeness, not necessarily great quantity.
• Related甚だしいはなはだしいWrittenWritten style for an extreme degree, mostly with bad things, as in 「誤解も甚だしい」.
• RelatedべらぼうCasualColloquial for outrageously large or absurd, as in 「べらぼうに高い」; it has an old Edo-period flavor.
• Related桁外れけたはずれNeutralFor figures far beyond the norm, as in 「桁外れの金額」; it stresses exceeding ordinary standards and is common in speech.
• RelatedとてつもないNeutralFor sizes or ideas so wild they defy common sense, as in 「途轍もない計画」; it carries a tone of astonishment.
• AntonymわずかNeutralAntonym meaning a mere little or few, the opposite of the huge quantities 「莫大」 describes.
• Antonym僅少きんしょうWrittenWritten-style antonym meaning very small in amount, the opposite of 「莫大」.

「莫大」 describes amounts so large they astound, chiefly money and losses. For sheer bulk of data or material use 「膨大」; for the severity of damage use 「甚大」; for tangible size use 「巨大」; for influence or popularity use 「絶大」. In everyday talk about big things in general, 「大きい」 is the all-purpose choice, while 「僅か」 is the antonym for tiny amounts.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 数量すうりょうなどが非常ひじょうに大おおきいさま。