Translation guide
The English prefix 'ultra-' means 'extremely' or 'beyond'. In Japanese, this concept is expressed through prefixes, adverbs, and intensifiers. The most common equivalent is 超 (ちょう), used as a prefix or standalone adverb, especially in casual speech. Other options include ウルトラ (urutora) for specific loanwords, and various intensifying adverbs depending on context.
Express that something is extremely or excessively something, often in casual or colloquial contexts.
The most common and versatile equivalent. Used as a prefix (超～) or as a standalone adverb (超 + adjective/noun). Very common in casual speech, especially among younger people. Can be used with adjectives, nouns, and some verbs.
Kansai-dialect origin but now widely used across Japan in casual speech. Similar to 超 but slightly more colloquial. Often used with adjectives and verbs.
Standard adverb meaning 'very' or 'extremely'. Less intense than 超 but more neutral and acceptable in polite conversation.
すごくきれい。
It's ultra beautiful.
Formal/written equivalent of 'extremely'. Used in speeches, news, and formal writing. Not used in casual conversation.
非常に重要な問題です。
It's an ultra important issue.
Form compounds meaning 'beyond the usual' or 'extreme version of', often in technical, scientific, or brand contexts.
Used as a prefix in compounds like 超音速 (supersonic), 超自然 (supernatural), 超大国 (superpower). Very productive.
Loanword from English 'ultra'. Used in specific borrowed terms like ウルトラマン (Ultraman), ウルトラC (ultra C, a gymnastics term), or brand names. Not a general-purpose prefix.
Prefix meaning 'ultra-' in some technical terms, e.g., 極超高周波 (ultra high frequency). Rare outside specialized fields.
極超高周波
ultra high frequency
Refer to extreme political factions or ideologies, often translated as 'ultra-' in English.
Used in compounds like 超国家主義 (ultranationalism) or 超保守派 (ultraconservative).
Means 'extreme' or 'radical'. Often used in 過激派 (extremist group). Not a direct translation of 'ultra' but conveys similar meaning.
過激派
ultra group; extremist group
ウルトラ is not a general-purpose prefix. It's mainly used in established loanwords or brand names. For most 'ultra-' compounds, use 超.
超 is very casual. In polite or formal contexts, use 非常に or とても instead.
ウルトラマン
Ultraman
ウルトラライトダウン
ultra light down (jacket)