adverb, noun, used as a suffix
Formal or literary adverb/suffix meaning 'extremely'. Often used in set phrases like 至極当然 (perfectly natural) or 至極簡単 (extremely simple).
noun which may take the genitive case particle 'no', na-adjective, noun
Noun/adjectival noun meaning the highest degree or the best. Often used in formal contexts like 至極の一品 (a supreme item) or 至極の栄誉 (the highest honor).
His proposal was perfectly natural.
The explanation was extremely simple and anyone could understand it.
This tea bowl is of supreme craftsmanship.
He was granted the highest honor.
至極 shares the kanji 至 and means 'extremely' or 'the utmost' generally, but unlike 至福 it does not specifically mean blissful happiness.
dark purple (highest-ranking officials' color)
extremely rude; most impolite
extremely delighted; most humbly pleased
extremely grateful; deeply obliged
deep regret; bitter disappointment
Standard kanji spelling; the only written form.
Compound of 至 (itari, 'arrival, extreme') and 極 (kiwami, 'extreme'). The exact historical derivation is uncertain, but the combination reinforces the meaning of 'utmost'.
extremely rude; outrageous; utterly insolent
perfectly reasonable; completely natural; perfectly good