Synonyms for Climacteric:

n.

head, crossroad, pass, crisis, decide, exigency, zero hour, turning point, Exigence, juncture. change of life (noun)
menopause.
climacteric (noun)
menopause, change of life.
crisis (noun)
Exigence.
trial (noun)
emergency, crucial period, crux, crisis.
turning point (noun)
head, juncture, crossroad, crisis.

Other synonyms:

zero hour, turning point. Exigence. juncture, exigency. head. straits
crisis.
Other relevant words:
head, crossroad, crisis, crucial period, juncture, emergency, turning point, Exigence, change of life, exigency, zero hour, pass.