良質|りょうしつryoushitsu[0]heiban (flat)

1. na-adjective, no-adjectivegood quality; fine quality; superior quality; high quality
   このテーブルは良質りょうしつのオーク材ざいでできている。↗

   This table is made of good oak.

• Synonym上等じょうとうNeutralRefers to high grade or first-class quality, as in 「上等な肉」; the colloquial 「上等だ」 also means 'bring it on'. 「良質」 states more objectively that quality is fine.
• Synonym優良ゆうりょうWrittenWritten word for superior to others, common in ratings such as 「優良企業」「優良ドライバー」. 「良質」 stresses that the intrinsic quality itself is good.
• Synonym良好りょうこうNeutralSays a state, result or grade is good, as in 「経過良好」「関係良好」. 「良質」 evaluates quality or nature, as in 「良質な水」「良質なサービス」.
• Synonym精良せいりょうWrittenWritten word for finely made excellence, describing equipment, products or even rice. 「良質」 is more common and focuses on fine texture or quality.
• Synonym佳良かりょうWrittenRare written word meaning good or favorable, seen mostly in ratings or assessments. In everyday speech, use 「良質」 to say quality is good.
• Related秀逸しゅういつWrittenWritten word praising works or ideas as outstanding, used in evaluating creative work. 「良質」 simply says the quality is good, without stressing superiority.
• Related出色しゅっしょくWrittenRare written word for standing out markedly among one's kind, mostly for people or works. 「良質」 only says quality is good, with no sense of being exceptional.
• Related良いよいNeutralThe most basic adjective for 'good', covering quality, condition, character and more. 「良質」 is limited to good quality or nature.
• Related素晴らしいすばらしいNeutralExpresses enthusiastic, subjective admiration for something wonderful. 「良質」 is a calmer, more objective verdict on quality.
• Related上々じょうじょうNeutralSays a result or state is first-rate, as in 「上々の出来」「滑り出しは上々」. 「良質」 judges quality and is not used for how things are going.
• Related見事みごとNeutralPraises splendid skill or results, and can also mean 'utter', as in total defeat. 「良質」 only says quality is good, without admiration.
• Related立派りっぱNeutralDescribes an imposing appearance or admirable character or conduct, as in 「立派な家」. 「良質」 says only that quality is good, nothing about grandeur.
• Related優秀ゆうしゅうNeutralFor outstanding grades or ability; fits people, and also products, performance or works. 「良質」 centers on fine materials or texture.
• RelatedいいCasualColloquial all-purpose adjective for 'good'. 「良質」 leans written and is specific to quality, as in 「良質な睡眠」.
• Related極上ごくじょうNeutralMeans the very top grade, as in 「極上の肉」, stressing the pinnacle of quality. 「良質」 just says quality is good, without claiming it is the best.
• Related優れたすぐれたNeutralAttributive form for surpassing others, as in 「優れた技術」. 「良質」 only says quality is good, without stressing comparison.
• Antonym粗悪そあくNeutralAntonym for coarse, shoddy quality or workmanship, as in 「粗悪品」「粗悪な原料」; opposed to 「良質」 on the point of quality.
• Antonym劣質WrittenWritten antonym meaning poor quality, directly opposite to 「良質」; mostly seen in writing, while speech usually says 「質が悪い」.

Use 「良質」 for good quality or nature, as in 「良質なタンパク質」 or 「良質な睡眠」. For the very top grade say 「極上」, for a good state or result 「良好」, for outstanding grades or ability 「優秀」; the direct opposite is 「粗悪」.

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

1. 品質ひんしつや性質せいしつがよいこと。
2. 品質ひんしつや性質せいしつがよいさま。