理想的|りそうてきrisouteki
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
- na-adjectiveideal
Conjugation
| Plain form | 理想的(りそうてき) |
|---|---|
| Polite (desu) | 理想的です(りそうてきです) |
| Negative (dewa nai) | 理想的ではない(りそうてきではない) |
| polite (dewa arimasen) | 理想的ではありません(りそうてきではありません) |
| Past (datta) | 理想的だった(りそうてきだった) |
| Past negative (dewa nakatta) | 理想的ではなかった(りそうてきではなかった) |
| Te form (de) | 理想的で(りそうてきで) |
| Adverbial (ni) | 理想的に(りそうてきに) |
| Conditional (nara) | 理想的なら(りそうてきなら) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Related完璧かんぺきNeutralFlawless, with not a single defect; 「理想的」 instead stresses matching the ideal standard in one's mind.
- Related上々じょうじょうNeutralColloquial for an excellent state of things, as in 「出来は上々だ」; stresses a good outcome rather than an ideal standard.
- Related万全ばんぜんNeutralFlawless preparedness, nothing left to chance; typically 「万全を期す」 or 「万全の態勢」. Stresses thorough preparation.
- Related文句なしもんくなしNeutralColloquial: beyond criticism, leaving nothing to complain about; stresses that no one can find fault.
- Related完全かんぜんNeutralComplete, with nothing missing; also adverbial as 「完全に」. About wholeness rather than an ideal standard.
- RelatedパーフェクトNeutralLoanword for perfect; can also mean a perfect score. Colloquial.
- Related見事みごとNeutralSplendid, admirable; stresses an outcome that draws praise, not an ideal standard.
- Related満足まんぞくNeutralSatisfaction, contentment; stresses the feeling of being fulfilled, while 「理想的」 stresses matching an ideal standard.
- Related良いよいNeutralThe most basic adjective for 'good'; 「理想的」 implies good to the point of matching an ideal.
- RelatedふさわしいNeutralBefitting one's status or the occasion, as in 「彼にふさわしい」; stresses being a good match.
- Related適切てきせつNeutralApt, appropriate, as in 「適切な処置」; meets the requirements but need not be perfect.
- Related適当てきとうNeutralSuitable, proper, but in colloquial use often means perfunctory or sloppy.
- Related妥当だとうNeutralReasonable, defensible, as in 「妥当な判断」; stresses that it holds up as justified.
- Related似つかわしいにつかわしいWrittenWritten: becoming, well matched to one's appearance or status; stresses the fit.
- Related十全じゅうぜんWrittenWritten style: perfect in every respect; commonly in 「十全の備え」.
- Related完全無欠かんぜんむけつWrittenWritten idiom for absolute flawlessness; a stronger, more absolute claim than 「理想的」.
- Related無欠むけつWrittenWritten: without defect; usually in the set phrase 「完全無欠」, rarely used alone.
- RelatedこよないWrittenLiterary and elegant: matchless, second to none; cf. 「こよなく愛する」.
- RelatedあらまほしいWrittenArchaic, literary: an ideal state one longs for; rare in modern Japanese.
- Related好適こうてきWrittenWritten/formal: highly suitable, as in 「好適な環境」.
- Antonym現実的げんじつてきNeutralAntonym in standpoint: 「理想的」 looks at the best one can envision, 「現実的」 at real conditions and feasibility; both can describe the same plan.
Default: 「理想的」 for something matching an ideal standard, as in 「理想的な環境」. For flawlessness use 「完璧」; for aptness 「適切」; for befitting a person or occasion 「ふさわしい」; for a pragmatic take 「現実的」. Colloquial praise of results or scores: 「上々」「文句なし」「パーフェクト」. 「万全」 and 「完全」 stress that nothing is missing, 「万全」 above all in preparation; 「見事」 admires the outcome; 「満足」 is feeling satisfied; 「良い」 is plain 'good'. Formal prose favors 「十全」「完全無欠」「無欠」「こよない」「有らまほしい」「似つかわしい」「好適」, with 「完全無欠」 the most absolute.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


