優良|ゆうりょうyuuryou[0]heiban (flat)

1. na-adjective, no-adjectivesuperior; excellent; fine

• Synonym優秀ゆうしゅうNeutralDescribes people's grades or ability as extremely outstanding; 「優良」 usually rates quality, breeds, or companies, as in 「優良企業」.
• Synonym上々じょうじょうCasualColloquial, for a situation or result turning out very well, as in 「上々の出来」; 「優良」 is a quality rating.
• Synonym上等じょうとうNeutralMeans high rank or top quality, and colloquially 'bring it on'; 「優良」 is the more objective rating.
• Synonym良質りょうしつNeutralRefers to good quality or nature, as in 「良質なタンパク質」 and 「良質な情報」; 「優良」 rates the overall grade.
• Synonym秀逸しゅういつWrittenWritten/formal prose for works or ideas that stand out as especially fine; 「優良」 is a quality rating.
• Synonym出色しゅっしょくWrittenWritten/formal prose for conspicuously outstanding results, as in 「出色の出来」; 「優良」 stresses fine quality.
• Synonym良好りょうこうNeutralFor good condition, results, or grades, as in 「経過良好」; 「優良」 is a quality rating.
• Synonym抜群ばつぐんCasualColloquial, for standing far above the crowd; 「優良」 only says the quality is good.
• Synonym極上ごくじょうCasualColloquial, for the very finest grade, often food or sake; 「優良」 is an objective rating.
• Synonym精良せいりょうWrittenWritten/formal prose for finely made, superior products or equipment; 「優良」 is the more common word.
• Synonym佳良かりょうWrittenWritten/formal prose for 'good', mostly as a grading level; 「優良」 is the more common word.
• Related目覚ましいめざましいNeutralFor striking, remarkable progress or achievement; 「優良」 is a quality evaluation.
• Related素晴らしいすばらしいCasualColloquial, an exclamatory 'wonderful, amazing'; 「優良」 is an objective rating.
• Related良いよいNeutralThe most basic word for 'good', at home in speech and writing; 「優良」 is a formal quality rating.
• Related輝かしいかがやかしいWrittenWritten/formal prose for brilliant achievements, as in 「輝かしい実績」; 「優良」 is about quality.
• Related素敵すてきCasualColloquial, for lovely, charming things; 「優良」 is an objective quality term.
• Related見事みごとNeutralFor splendid technique or results; 「優良」 is a quality rating.
• Related立派りっぱNeutralCovers fine, impressive, praiseworthy looks or conduct; 「優良」 is a quality grade.
• RelatedよろしいFormalFormal, meaning 'good, all right', often to grant permission; 「優良」 is a quality evaluation.
• RelatedあっぱれCasualA colloquial exclamation for a job well done, worthy of praise; 「優良」 is an objective evaluation.
• Related優等ゆうとうNeutralFor excellent grades, as in 「優等生」; 「優良」 leans toward quality and breeds.
• Related優れたすぐれたNeutralA prenominal form meaning outstanding, excellent; 「優良」 is a rating term.
• Antonym不良ふりょうNeutralAntonym: poor quality or bad condition, the direct opposite of 「優良」.
• Antonym劣悪れつあくWrittenAntonym, written/formal prose for dreadful quality or conditions, opposite of 「優良」.

Use 「優良」 to rate quality, breeds, or companies as good, as in 「優良ドライバー」. For people's ability or grades choose 「優秀」; for good quality 「良質」 or 「上等」; for good condition or results 「良好」. Others add nuance: colloquial praise like 「素晴らしい」 or 「抜群」, written praise like 「秀逸」 or 「輝かしい」, formal permission with 「宜しい」. Opposites are 「不良」 and 「劣悪」.

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

1. 他ほかのものよりも優すぐれていること。