~極まる

〜kiwamaru

JLPT N1 Very formal, literary Chapter 140: Forced into it, and the state it left, 6 of 7

Formation

な-Adjective(語幹)+ 極まる, い-Adjective(連用形)+ こと + 極まる, etc.

Also expresses an extreme degree or state, typically negative.

When to use

極まる: extremely, usually negative (失礼極まる).

Explanation

The ~極まる form often appears with な-adjectives: e.g., 失礼極まる, 非常識極まる ('extremely rude/unreasonable'). It's largely synonymous with ~極まりない but tends to appear in set phrases. Both forms are quite formal and emphatic.

Example sentences

Extremity (Extremely / Utterly)

Corpus examples (2)