画期的・劃期的|かっきてきkakkiteki[0]heiban (flat)
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Which spelling to use
画期的画期的 is the most common and standard written form; it is the form beginners should normally choose when expressing this meaning.
劃期的劃期的 is a rarely used written variant of 画期的. Beginners should recognize it, but use 画期的 instead.
Definitions
- na-adjectiveground-breaking; revolutionary; unprecedented; epoch-making
Conjugation
| Plain form | 画期的（かっきてき） |
|---|---|
| Polite (desu) | 画期的です（かっきてきです） |
| Negative (dewa nai) | 画期的ではない（かっきてきではない） |
| polite (dewa arimasen) | 画期的ではありません（かっきてきではありません） |
| Past (datta) | 画期的だった（かっきてきだった） |
| Past negative (dewa nakatta) | 画期的ではなかった（かっきてきではなかった） |
| Te form (de) | 画期的で（かっきてきで） |
| Adverbial (ni) | 画期的に（かっきてきに） |
| Conditional (nara) | 画期的なら（かっきてきなら） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym革命的かくめいてきWrittenWritten/formal prose. Describes drastic, sweeping change; 画期的 stresses pioneering progress that opens a new era.
- Related斬新ざんしんNeutralRefers to fresh, original ideas or designs, as in 「斬新なデザイン」; 画期的 stresses an era-opening breakthrough.
- Related新奇しんきWrittenWritten/formal prose. Means novel and out of the ordinary; 画期的 implies a major, epoch-making breakthrough.
- Antonym凡庸ぼんようWrittenWritten/formal prose. Means mediocre and unremarkable — the opposite of the epoch-making 画期的.
- Antonym陳腐ちんぷWrittenWritten/formal prose. Means stale and clichéd — the opposite of the ground-breaking 画期的.
Use 「画期的」 for ground-breaking advances that open a new era, as in 「画期的な発明」. Choose 「斬新」 for fresh, original designs, 「革命的」 for drastic, disruptive change, and 「新奇」 for what is merely novel; 「陳腐」 and 「凡庸」 are its opposites.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
