Verb (5-dan, る, intransitive)
1. to reach an extreme; to reach a limit; to terminate; to come to an end
Pre-noun adjective
Auxiliary verb (5-dan, る)
2. extremely
after adjectival noun. e.g. 退屈極まる話
Verb (5-dan, る, intransitive)
3. to be stuck; to be in a dilemma; to be at a loss
esp. 窮まる. occ. 谷まる
4. to be decided; to be settled