watershed

/ˈwɑtɝˌʃɛd/

an event marking a turning point

watershed in a sentence

“The invention of the internet was a watershed moment.”

Old English: wæter (water) + scead (divide, separation)

Related Words

nascent

just beginning to develop; not yet fully formed

incipient

in an initial stage; beginning to happen

embryonic

in an early stage of development

germinal

relating to the earliest stage of development

fledgling

new and inexperienced; emerging

defunct

no longer existing or functioning