ついに・遂に・終に・竟にtsuini[1]atamadaka (head-high)

1. adverbfinally; in the end; at last
   ついに病気びょうきで疲つかれた男おとこたちは彼かれが待まっている山岳さんがく都市としに到着とうちゃくした。↗

   Finally, the sick, tired men reached the mountain town where he was waiting.
2. adverbin the end; after all; never (happened)with neg. verb

• SynonymとうとうNeutralThe everyday spoken choice for a result that comes after much back and forth, good or bad. 「遂に」 is more written and can also say something never happened.
• Synonym結局けっきょくNeutralStresses the upshot after twists and turns, with a neutral tone, as in 「結局行かなかった」. 「遂に」 focuses on a result finally appearing after a long time.
• Synonym果てははてはWrittenWritten/formal prose: 'in the end, on top of that', usually adding a negative escalation. 「遂に」 simply says 'finally'.
• SynonymようやくNeutral'At last, only just' — highlights the effort involved. 「遂に」 focuses on the moment finally arriving.
• Synonym末にすえにNeutralUsually in the pattern 「〜た末に」, 'after a long process'. 「遂に」 can stand alone as an adverb.
• Synonym究竟くっきょうWrittenA literary, old-fashioned word for 'after all, at bottom'; it can also mean 'excellent'. In daily speech say 「結局」.
• Related挙句あげくNeutralUsually as 「〜た挙句」, giving the result after much struggling, often negative. 「遂に」 is neutral about the outcome.
• Related所詮しょせんNeutralMeans 'ultimately, after all', usually with a resigned or negative ring, as in 「所詮無理だ」; 「遂に」 focuses on narrating how things finally turned out.
• RelatedつまるところWrittenA written/formal prose word meaning 'when all is said and done', used to sum up an argument. 「遂に」 narrates the final outcome of events.
• Related挙句の果てあげくのはてNeutralA set phrase for ending up with a bad outcome after all the fuss. 「遂に」 does not imply the result is bad.
• Related畢竟ひっきょうWrittenWritten/formal prose for 'after all, at bottom', leaning argumentative. In everyday speech use 「結局」 or 「所詮」.
• AntonymまだNeutralThe opposite of 「遂に」 on whether something has happened: it means 'still not, not yet'.

Use 「遂に」 for a result that finally arrives after a long time, good or bad; with a negative it means it never happened, as in 「遂に現れなかった」. In speech 「とうとう」 is more common; for something achieved with effort use 「ようやく」, for a conclusion after twists and turns 「結局」, and for a resigned, negative 'in the end, after all' 「所詮」.

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

1. 長ながい時間じかんののちにある状態じょうたいに達たっするさま。ようやく。やっと。
2. ある物事ものごとの実現じつげんしない状態じょうたいが最後さいごまで続つづくさま。結局けっきょく。ついぞ。