興味深い・興味ぶかい|きょうみぶかいkyoumibukai[5]nakadaka (mid-high)
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Which spelling to use
興味深い興味深い is the more common written form and the recommended choice for beginners.
興味ぶかい興味ぶかい is a less common written variant; recognize it, but beginners should generally choose 興味深い instead.
Definitions
- i-adjectivevery interesting; of great interest
Conjugation
| Plain form | 興味深い（きょうみぶかい） |
|---|---|
| Polite (desu) | 興味深いです（きょうみぶかいです） |
| Negative (kunai) | 興味深くない（きょうみぶかくない） |
| polite (ku arimasen) | 興味深くありません（きょうみぶかくありません） |
| Past (katta) | 興味深かった（きょうみぶかかった） |
| Past negative (kunakatta) | 興味深くなかった（きょうみぶかくなかった） |
| Te form (kute) | 興味深くて（きょうみぶかくて） |
| Adverbial (ku) | 興味深く（きょうみぶかく） |
| Conditional (kereba) | 興味深ければ（きょうみぶかければ） |
| kattara | 興味深かったら（きょうみぶかかったら） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym面白いおもしろいNeutralThe most general word for interesting; it can also mean funny. 「興味深い」 leans written and suggests something that draws you in and makes you want to learn more.
- RelatedエキサイティングNeutralA loanword for exciting; the nuance is the thrill of the moment, as with a match or game. Neutral in register.
- Related魅力的みりょくてきNeutralMeans charming or attractive; the focus is on the appeal a person or thing holds, not on how interesting it is.
- Related刺激的しげきてきWrittenWritten/formal prose. Describes something stimulating or inspiring, as in 「刺激的な体験」; the nuance leans toward freshness and novelty.
- RelatedおもろいCasualColloquial Kansai dialect for interesting or fun; much more casual than 「興味深い」.
- Antonym退屈なNeutralAntonym: boring or dull—the direct opposite of the engrossing quality of 「興味深い」.
- Antonym無味乾燥なWrittenWritten/formal prose for dry and flavorless content; the opposite of 「興味深い」.
For plain 'interesting'—or funny—use 「面白い」. For something that really draws your interest, as in 「興味深い研究」 or 「興味深い話」, use 「興味深い」. For something thrilling, pick 「エキサイティング」; for boring, 「退屈」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
See also
