Meaning of “extremity” - Learner’s Dictionary

extremity

noun uk us /ɪkˈstreməti/ formal
FAR AWAY [ C ]

the part of something that is furthest from the centre:

at the north-west extremity of Europe
FEELING/SITUATION [ U ]

a situation in which a feeling is very strong or a bad situation that is very serious:

the extremity of her distress

(Definition of “extremity” from the Cambridge Learner’s Dictionary © Cambridge University Press)