最高|さいこうsaikou[0]heiban (flat)

1. no-adjective, na-adjectivebest; supreme; wonderful; finest
   彼かれは現存げんそんする最高さいこうの芸術家げいじゅつかである。↗

   He is the greatest living artist.
2. no-adjective, na-adjectivehighest; maximum; most; uppermost; supreme
   株価指数かぶかしすうは過去かこ最高さいこうに上昇じょうしょうした。↗

   The stock price index soared to an all-time high.

• SynonymベストCasualColloquial loanword for 'best' or a best-ever record, as in 「ベストを尽くす」. Very common in speech.
• SynonymファンタスティックNeutralLoanword for something fantastic with a dreamlike flair, used to praise shows or sport; for direct everyday praise 「最高」 is the go-to.
• Synonym極上ごくじょうNeutralNeutral word for the very finest grade, as in 「極上の肉」. It turns up mostly with food and other goods.
• Synonym上々じょうじょうNeutralNeutral word for excellent conditions, as in 「天気は上々」. It carries a satisfied 'everything is fine' feeling.
• SynonymワンダフルCasualLoanword used mostly as an exclamation — 'Wonderful!' — with an exaggerated, Western-style flavour. Colloquial.
• SynonymマキシマムWrittenLoanword for a maximum limit, as in 「マキシマム料金」. It sticks to the ceiling of a number or amount, while 「最高」 can also praise quality.
• Synonym無上むじょうWrittenWritten word for something supreme, as in 「無上の喜び」. It is used above all for feelings, not as an all-purpose 'best'.
• SynonymマクシマムWrittenAn alternative transliteration of 「マキシマム」 with the same sense of a maximum limit. Much less common, so you will seldom meet it.
• Related並み外れなみはずれCasualColloquial word for being far above the average, as in 「並み外れた才能」. It measures against ordinary people rather than naming the best.
• Related素敵すてきCasualColloquial word for charming, attractive people and things, as in 「素敵な人」. The emphasis falls on charm, not on being number one.
• Related素晴らしいすばらしいNeutralNeutral word for something extremely fine, as in 「素晴らしい景色」. It carries a strong tone of admiration.
• Related優秀ゆうしゅうNeutralNeutral word for excellence in grades or ability, as in 「優秀な学生」. A more objective judgement than the emotive 「最高」.
• Related抜群ばつぐんNeutralNeutral word for standing out from the crowd, as in 「抜群の成績」. It highlights being head and shoulders above the rest.
• Related格別かくべつWrittenWritten word for something exceptionally good, as in 「格別の味」. It stresses the special degree of quality.
• Related非凡ひぼんWrittenWritten word for extraordinary ability, as in 「非凡な才能」. It describes being far from ordinary, not being the best.
• Related上等じょうとうNeutralNeutral word for superior quality, as in 「上等な酒」. It can also serve as a defiant 'bring it on', a use 「最高」 lacks.
• RelatedすごいCasualColloquial word for something amazing or awesome, as in 「すごい人」. The most frequently used of all in everyday speech.
• Related見事みごとNeutralNeutral word for a splendid, skilful showing, as in 「見事な演技」. The focus is on fine technique, which 「最高」 does not stress.
• Related桁外れけたはずれCasualColloquial word for scale far beyond the norm, as in 「桁外れの金持ち」. It stresses sheer magnitude rather than overall quality.
• Related人並みはずれたひとなみはずれたCasualColloquial modifier for abilities beyond the ordinary person, as in 「人並み外れた力」. It describes the exceptionality itself.
• Related優れたすぐれたNeutralNeutral word for excellent people or works, as in 「優れた作品」. Its evaluative use leans toward written prose.
• Antonym最低さいていNeutralThe antonym: lowest or worst. For numerical lower limits it appears in formal contexts, as in 「最低気温」「最低賃金」.

For 'the best' or 'wonderful', 「最高」 is the default. In casual speech reach for 「すごい」 or 「ベスト」. Use 「抜群」 for standing out from the pack, 「優秀」 for strong ability or grades, 「見事」 for a skilful performance, 「無上」 for supreme feelings, and 「極上」 for top-grade goods. 「最低」 is the opposite: the worst, or a formal lower limit. The rest shade the meaning: loanwords like 「ファンタスティック」 and 「ワンダフル」, written words like 「格別」 and 「非凡」, and 'beyond the norm' terms like 「桁外れ」 and 「並み外れ」.

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

1. 最もっとも高たかいこと。
2. 品性ひんせい・品質ひんしつなどが極度きょくどに優すぐれること。
3. 最もっとも多おおいこと。副詞ふくし的てきにも用もちいられる。
4. 気分きぶん・調子ちょうしなどがいちじるしく良好りょうこうなこと。
5. 程度ていどがいちじるしいこと。非常ひじょう。