大きい|おおきいookii[3]nakadaka (mid-high)
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- i-adjectivebig; large; great
- i-adjectiveloud
- i-adjectiveextensive; spacious
- i-adjectiveimportant; decisive; valuable
- i-adjectiveolder; grown-up
Conjugation
| Plain form | 大きい(おおきい) |
|---|---|
| Polite (desu) | 大きいです(おおきいです) |
| Negative (kunai) | 大きくない(おおきくない) |
| polite (ku arimasen) | 大きくありません(おおきくありません) |
| Past (katta) | 大きかった(おおきかった) |
| Past negative (kunakatta) | 大きくなかった(おおきくなかった) |
| Te form (kute) | 大きくて(おおきくて) |
| Adverbial (ku) | 大きく(おおきく) |
| Conditional (kereba) | 大きければ(おおきければ) |
| kattara | 大きかったら(おおきかったら) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- SynonymでかいCasualColloquial; rougher and more casual than 「大きい」, as in 「でかい声」. Avoid in formal settings.
- SynonymおっきいCasualA colloquial sound change of 「大きい」, common in casual talk; more direct and emotive in tone.
- Synonym大おおWrittenAn old form, mostly a prefix meaning large or higher in rank; rarely used alone today—say 「大きい」.
- Synonym巨大きょだいNeutralFor extremely large size or scale, as in 「巨大な建物」; far stronger in degree than 「大きい」.
- Synonym膨大ぼうだいNeutralFor vast quantities or scale, often with data or costs, as in 「膨大な資料」; stresses sheer amount.
- Synonym莫大ばくだいNeutralFor immense sums, losses, etc., as in 「莫大な費用」; mostly about money and gains.
- Synonym大きなおおきなNeutralA pre-noun word used only before nouns, as in 「大きな家」; 「大きい」 works both attributively and as a predicate.
- Synonym大したたいしたNeutralA pre-noun word meaning considerable or impressive, often negated as 「大したことない」; not about physical size.
- Synonym大型おおがたNeutralFor size classes or large-scale, as in 「大型トラック」「大型連休」; used for categorizing.
- Synonym極大きょくだいWrittenWritten/formal prose for extremely large; in mathematics, a local maximum. Not used in daily speech.
- SynonymどでかいCasualColloquial, an intensified 「でかい」: astonishingly big.
- Synonym大いなるおおいなるWrittenA literary pre-noun word, as in 「大いなる希望」; solemn, literary flavor.
- Synonym至大しだいWrittenWritten/formal prose for boundlessly large; very rarely used.
- Synonym馬鹿でかいばかでかいCasualColloquial for absurdly big, with an exaggerated or put-off tone.
- Related大々的だいだいてきNeutralFor grand scale and fanfare, as in 「大々的に宣伝する」; stresses the scale and momentum of an event.
- RelatedとてつもないNeutralFor sizes or things beyond common sense, as in 「途轍もない計画」; can be praise or criticism.
- Related洪大こうだいWrittenWritten/formal prose for vast and grand; very rare—say 「大きい」 in daily life.
- Antonym微小なWrittenAntonym of 「大きい」: extremely tiny; written/formal prose, often in scientific description.
Default to 「大きい」; before a noun you can also use 「大きな」. Colloquially use 「でかい」. For extremely large things use 「巨大」, for huge amounts of money or data 「膨大」 and 「莫大」, and for size categories 「大型」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


