猛烈|もうれつmouretsu[0]heiban (flat)

1. na-adjectivefierce; intense; severe; violent; strong; vehement; terrific; terrible
   警官けいかんがやってくるのを見みると彼かれは猛烈もうれつに走はしり出だした。↗

   When he saw a policeman coming, he began to run like anything.
2. adverbvery; extremely; terribly; totally

• Synonym激しいはげしいNeutralThe everyday adjective for intensity, as in 「激しい雨」; common in speech, while 「猛烈」 leans written and also serves as an adverb meaning 'extremely'.
• Synonym強烈きょうれつNeutralDescribes strong stimulation, typically of impressions or smells, as in 「強烈な印象」; 「猛烈」 stresses fierce momentum rather than sensory impact.
• Synonym凄まじいすさまじいNeutralSuggests an astonishing degree, whether fearsome or simply amazing, as in 「凄まじい音」「凄まじい人気」.
• Synonym激甚げきじんWrittenWritten style, used mostly for disasters, as in 「激甚災害」; 「猛烈」 is the more general choice.
• Synonym激烈げきれつWrittenWritten word for fierce competition or argument, as in 「激烈な競争」; 「猛烈」 stresses momentum rather than the clash itself.
• Synonym強いつよいNeutralThe most versatile word for 'strong'; 「猛烈」 stresses fierce momentum and extreme degree.
• Synonym甚だしいはなはだしいWrittenWritten, mostly for extreme negative degrees, as in 「甚だしい誤解」; 「猛烈」 also works for positive things.
• Synonym酷烈こくれつWrittenWritten and rare, meaning extremely harsh, as in 「酷烈な刑罰」; 「猛烈」 stresses momentum.
• Synonym苛烈かれつWrittenWritten, for harsh competition or conditions, as in 「苛烈な戦い」; 「猛烈」 stresses momentum.
• Related痛烈つうれつNeutralSharp and fierce in its effect, most typically of biting criticism, as in 「痛烈な批判」; 「猛烈」 stresses momentum.
• RelatedひどいCasualColloquial word for something excessive or awful; 「猛烈」 stresses fierce momentum and extreme degree.
• RelatedきついCasualColloquial for things that are tight, tough or demanding; 「猛烈」 stresses fierce momentum.
• Related厳しいきびしいNeutralCovers severity and strictness, as in 「厳しい寒さ」; 「猛烈」 stresses fierce momentum.
• Related荒々しいあらあらしいNeutralDescribes rough, wild movement or manner; 「猛烈」 stresses momentum and degree.
• Related凶暴きょうぼうNeutralMeans ferocious and brutal, mostly of people or animals; 「猛烈」 stresses momentum.
• RelatedすごいCasualThe most common colloquial word for 'amazing'; 「猛烈」 leans written and stresses momentum.
• Related凄絶せいぜつWrittenWritten, for something gruesomely savage to the extreme, as in 「凄絶な戦い」; 「猛烈」 stresses momentum.
• Related峻烈しゅんれつWrittenWritten, for stern, unsparing demands or treatment, as in 「峻烈な批判」; 「猛烈」 stresses momentum.
• Related獰猛どうもうNeutralDescribes ferocious animals, as in 「獰猛な犬」; 「猛烈」 suits natural phenomena and the momentum of actions.
• Related凶猛きょうもうWrittenWritten word for ferocity; 「猛烈」 stresses momentum.
• Antonym微弱びじゃくWrittenAntonym on the strength axis: feeble or faint.
• Antonym穏やかおだやかNeutralAntonym on the intensity axis: calm and mild.

Use 「猛烈」 for fierce momentum or extreme degree, as in 「猛烈な台風」「猛烈に勉強」; it leans written and doubles as an adverb. For everyday intensity pick 「激しい」, for strong impressions 「強烈」, for biting criticism 「痛烈」, for fierce competition 「激烈」. Antonyms: 「穏やか」 and 「微弱」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 勢いきおいが非常ひじょうに激はげしいこと。
2. 程度ていどが甚はなはだしいこと。
3. がむしゃらに働はたらくさま。
4. 程度ていどがはなはだしいさま。