極度|きょくどkyokudo[1]atamadaka (head-high)

1. no-adjective, na-adjectivemaximum; extreme; utmost
   人間にんげんも極度きょくどに寒さむい温度おんどに対たいしては、防御ぼうぎょ装置そうちを備そなえている。↗

   Man, too, has been given protective devices against extreme temperatures.

• Synonym極めてきわめてNeutralAn adverb meaning 'extremely'; 「極度」 is a noun or adjectival noun, as in 「極度の疲労」.
• Synonym至極しごくWrittenA written word meaning 'extremely'; also used as a suffix, as in 「残念至極」. Slightly old-fashioned and elegant.
• Synonym極端きょくたんNeutralMeans 'extreme, radical', as in 「極端な意見」; stresses leaning to one end.
• Synonym極限きょくげんNeutralMeans 'limit, boundary', as in 「極限状態」; stresses being at the very edge.
• Synonym甚だしいはなはだしいNeutralAn adjective for a severe degree, often negative, as in 「誤解も甚だしい」.
• Related非常にひじょうにNeutralAn adverb meaning 'very', common in both speech and writing; 「極度」 is a noun or adjectival noun.
• Related最大限さいだいげんNeutralMeans 'to the maximum', as in 「最大限に活用する」; stresses doing as much as possible.
• Related究極きゅうきょくNeutralMeans 'ultimate', as in 「究極の選択」 or 「究極の美」; stresses a state at the very peak.
• Related甚だはなはだWrittenA written adverb meaning 'very', often with a negative nuance, as in 「甚だ遺憾」.
• Related至っていたってWrittenA written adverb meaning 'very, extremely', as in 「至って健康」.
• Relatedこの上ないこのうえないNeutralMeans 'matchless, the best', as in 「この上ない喜び」; mostly used for positive feelings.
• RelatedすこぶるNeutralAn adverb meaning 'very'; a bit old-fashioned, as in 「すこぶる元気」.
• Related最大限度さいだいげんどWrittenA written word for 'the maximum'; synonymous with 「最大限」.
• Related最高限度さいこうげんどWrittenA written word for an upper limit, often in rules or regulations; 「極度」 speaks of degree.
• Antonym軽度けいどNeutralMeans mild symptoms or a slight degree; the opposite of 「極度」.
• Antonym低度ていどWrittenA written word for a low degree, not often used; the opposite of 「極度」, a degree at its peak.

Use 「極度」 when a degree reaches its utmost, often for negative states like 「極度の緊張」. To say 'extremely' as an adverb, use 「極めて」 or 「非常に」; for leaning to one extreme, 「極端」. 「この上ない」 fits positive praise, 「甚だ」「至って」「至極」 are written style, and 「軽度」 is the opposite.

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

1. これ以上いじょうはないという程度ていど。極限きょくげんの度合どあい。
2. 程度ていどが甚はなはだしい。