絶頂|ぜっちょうzetchou[0]heiban (flat)

1. nountop (of a mountain); summit
2. nounpeak; height; zenith; acme; climax
   その俳優はいゆうは人気にんき絶頂ぜっちょうの時ときに死しんだ。↗

   The actor died at the height of his popularity.
3. noun, suru verb, intransitive verborgasm; climax

• Synonym頂上ちょうじょうNeutralThe top of a mountain or the highest point of anything, with the focus on physical position; 「絶頂」 is mostly figurative, for the height of popularity or happiness.
• Synonym山頂さんちょうNeutralStrictly the summit of a mountain and nothing else; 「絶頂」 can also mean a mountaintop but is more often used figuratively for a state at its peak.
• SynonymピークNeutralLoanword for a peak or peak value, as in 「混雑のピーク」; typically used for figures and levels of congestion, while 「絶頂」 describes a state at its height.
• Synonym極致きょくちWrittenWritten word for the ultimate degree of something, as in 「美の極致」; stresses the lofty level attained, while 「絶頂」 also covers mountaintops and the height of popularity.
• Synonym最高潮さいこうちょうNeutralThe highest point a plot, emotion or situation reaches, as in 「緊張が最高潮に達する」; close to 「絶頂」 for states at their peak, but never a mountaintop.
• Synonym真っ盛りまっさかりNeutralStresses being right in the middle of the peak, as in 「夏真っ盛り」; mostly about seasons, while 「絶頂」 speaks of the height of popularity or happiness.
• Related頂点ちょうてんNeutralThe highest point or apex, also the top of a field or profession; more neutral and objective than 「絶頂」.
• RelatedピークNeutralLoanword for a peak or peak value, as in 「混雑のピーク」; typically used for figures and levels of congestion, while 「絶頂」 describes a state at its height.
• RelatedクライマックスNeutralLoanword for the climax of a story or event; focuses on the high point of a plot, whereas 「絶頂」 can also refer to a mountaintop.
• Related盛りさかりNeutralThe time when something is at its fullest, as in 「夏の盛り」 or 「花の盛り」, also a person's prime; more everyday than 「絶頂」 and without the sense of reaching the very summit.
• Related黄金時代おうごんじだいNeutralA golden age, the most brilliant stretch of history; the emphasis is on an era, while 「絶頂」 points to the peak itself.
• Related佳境かきょうWrittenWritten word for the most gripping part of a story or situation, also a scenic spot, as in 「佳境に入る」; stresses moving into the best part.
• Related高潮こうちょうNeutralHigh tide, or momentum reaching its height, as in 「議論が高潮する」; close in use to 「最高潮」.
• RelatedトップNeutralLoanword for first place or the top echelon, as in 「業界のトップ」; about rank and position, not a state of being at one's height like 「絶頂」.
• Related最盛期さいせいきNeutralThe period of greatest vigor, also the season when produce is at its best; covers a span of time, while 「絶頂」 is the single point at the top.
• Related盛時せいじWrittenA written word for the flourishing days of a nation, organization or life; strongly literary, with 「全盛期」 the everyday choice.
• Related最高点さいこうてんNeutralThe highest score, or the highest altitude of a mountain or terrain; 「絶頂」 centers on a state being at its peak.
• Related全盛期ぜんせいきNeutralA period of greatest prosperity; the focus is on a stretch of time, while 「絶頂」 points to the moment of reaching the peak.
• Antonym底辺ていへんNeutralThe base of a polygon or the bottom of society, opposed to 「頂点」 and 「上層」; 「絶頂」 is about a state at its peak, so the two contrast only in high versus low.
• Antonymどん底どんぞこNeutralRock bottom, as in 「不幸のどん底」; the antonym of 「幸福の絶頂」 in that a state has sunk to its lowest.

Use 「絶頂」 for the peak of popularity, happiness or career. For a mountaintop say 「山頂」 or 「頂上」; for peak figures or congestion, 「ピーク」; for the climax of a plot or emotion, 「最高潮」. 「頂点」 is a neutral highest point, 「トップ」 a rank, and 「盛り」「全盛期」「最盛期」 cover prime periods rather than the peak moment. The rest are narrower: 「クライマックス」 for story climaxes, 「最高点」 for top scores, 「黄金時代」 for eras, 「佳境」「極致」「盛時」 are written words, and 「どん底」「底辺」 are the low points opposite to it.

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

1. 山やまの頂上ちょうじょう。
2. 最高さいこうの状態じょうたい。
3. オーガズム。エクスタシー。