懐古|かいこkaiko[1]atamadaka (head-high)
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- noun, suru verb, intransitive verbreminiscence; nostalgia; thinking fondly of the past; recalling the old days
Conjugation
| Dictionary form | 懐古する(かいこする) |
|---|---|
| Polite (masu) | 懐古します(かいこします) |
| Negative (nai) | 懐古しない(かいこしない) |
| polite (masen) | 懐古しません(かいこしません) |
| classical zu / nu | 懐古せず・懐古せぬ(かいこせず・かいこせぬ) |
| Past (ta) | 懐古した(かいこした) |
| polite (mashita) | 懐古しました(かいこしました) |
| Past negative (nakatta) | 懐古しなかった(かいこしなかった) |
| polite (masen deshita) | 懐古しませんでした(かいこしませんでした) |
| Te form | 懐古して(かいこして) |
| Potential | 懐古できる(かいこできる) |
| Passive | 懐古される(かいこされる) |
| Causative | 懐古させる(かいこさせる) |
| Causative passive | 懐古させられる(かいこさせられる) |
| Conditional (ba) | 懐古すれば(かいこすれば) |
| tara | 懐古したら(かいこしたら) |
| Volitional | 懐古しよう(かいこしよう) |
| polite (mashou) | 懐古しましょう(かいこしましょう) |
| Imperative | 懐古しろ(かいこしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- SynonymノスタルジアWrittenWritten-flavoured loanword for the feeling of missing one's hometown and childhood while living somewhere far from it; 「懐古」 is cherishing the past itself.
- Synonym郷愁きょうしゅうWrittenWritten word mainly for longing for one's hometown, also for the past; compared with 「懐古」 it carries an extra note of homesickness.
- SynonymノスタルジーNeutralLoanword for the feeling of missing home or the old days; more common than 「ノスタルジア」. It is emotion where 「懐古」 is act.
- Synonym懐旧かいきゅうWrittenWritten word for reminiscing about the past; nearly synonymous with 「懐古」 but used far less, as in 「懐旧の情」.
- Related物懐かしさNeutralA faint, vague feeling of nostalgia that stresses the emotion; 「懐古」 is the act of recalling and cherishing days gone by.
- Relatedもの懐かしさNeutralKana spelling of 「物懐かしさ」, same meaning: a faint nostalgic feeling, more emotion than the act 「懐古」 denotes.
- Related懐かしさNeutralEveryday word for the feeling of something being fondly remembered; 「懐古」 is a written word for the act or taste of recalling the past.
- Antonym未来指向みらいしこうNeutralAn attitude of focusing on what lies ahead and moving forward; the opposite of 「懐古」, which dwells on the past.
Use 「懐古」 for reminiscing about the past, an era or one's own days, often as 「懐古趣味」 or 「懐古的」. For the nostalgic feeling itself, say 「懐かしさ」; for homesickness, 「郷愁」. 「懐旧」 is a rarer near-twin; 「未来指向」 is the opposite.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


