豊饒|ほうじょうhoujou[0]heiban (flat)

1. na-adjective, nounfertile; productive; fruitful

• Synonym豊かゆたかNeutralEveryday word for plentiful quantity or a comfortable, well-off life; much broader than 「豊饒」 and not tied to fertile land.
• Synonym豊富ほうふNeutralCommon word for rich variety or quantity, as in 「経験豊富」「品数が豊富」; it is not used of fertile land.
• Synonym潤沢じゅんたくWrittenWritten word for ample funds, supplies or resources, as in 「潤沢な資金」; never said of land.
• Synonym豊沃ほうよくWrittenRare written word for fertile land full of nutrients that yields good crops; near 「豊饒」 but seldom seen.
• Synonym肥沃ひよくNeutralThe closest match to 「豊饒」 and the more common everyday choice: soil rich enough to grow crops.
• SynonymふんだんCasualColloquial, often as an adverb: using something lavishly and without stinting, as in 「ふんだんに使う」.
• Synonym富饒ふじょうWrittenRare written near-synonym read 「ふじょう」, for abundant produce; 「豊饒」 leans more toward fertile soil.
• Synonym豊潤ほうじゅんWrittenWritten word for plump, moist richness, mostly describing fruit or the mellow body of wine.
• Related富裕ふゆうWrittenWritten word for wealth, stressing ample property and a comfortable life, as in 「富裕層」; not about land.
• Related裕福ゆうふくNeutralWealthy in the sense of a well-off family and comfortable living; describes people, never land.
• RelatedリッチCasualColloquial loanword: rich in the sense of money or of a full, mellow flavour; not for fertile land.
• Related十分じゅうぶんNeutralEveryday word for sufficiency — enough, with nothing lacking, as in 「十分な時間」; about degree, not fertility.
• RelatedたくさんCasualThe most casual way to say 'a lot', as in 「たくさんある」; the focus is on large numbers or amounts, with none of the fertile-land sense of 「豊饒」.
• Related大量たいりょうNeutralNeutral word for huge quantity or scale, as in 「大量生産」.
• Related膨大ぼうだいWrittenWritten word for enormous scale, as in 「膨大な資料」.
• Related多量たりょうWrittenWritten word for large amounts, as in 「多量の出血」; often in medical contexts.
• Related実りあるみのりあるWrittenWritten and fairly abstract: rewarding, bringing good results — about outcomes, not soil or wealth.
• Related生産的せいさんてきWrittenWritten word for productive or constructive, mainly of discussions and work.
• RelatedあまたWrittenLiterary word for great numbers, as in 「数多の困難」; carries an old-fashioned elegance.
• Antonym貧困ひんこんNeutralIts opposite only in the sense of plenty versus scarcity: poverty or lack, also of meagre content, as in 「発想の貧困」.
• Antonym不毛ふもうWrittenWritten antonym for barren, infertile land, the opposite of 「豊饒」 in its fertile-soil sense.
• Antonym枯渇こかつWrittenWritten antonym: resources drying up or running out, the opposite of 「豊饒」 in its abundance sense.

「豊饒」 is written prose for fertile land and abundant produce, and by extension rich cultural or artistic content, as in 「豊饒の海」. In daily speech prefer 「肥沃」 for fertile soil and 「豊か」 for richness in general; for quantity or variety use 「豊富」. For wealth pick 「裕福」 or 「富裕」, for ample funds 「潤沢」, for huge scale 「膨大」; the antonyms are 「不毛」 (barren land) and 「枯渇」 (resources running dry).

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

1. 土地とちが肥こえていて作物さくもつがよく実みのること。また、そのさま。