u/SaturaVeritas

Posteritous — adj. undertaken with regard for future generations

I recently came across a coined word that feels like it should already exist:

posteritous (adj.) — undertaken with regard for the welfare, interests, or judgment of future generations; intended to benefit posterity.

Examples:

“A posteritous act may benefit people who will never know your name.”

“Building institutions that still work a century from now is a posteritous project.”

Formation is pretty straightforward: posterity + -ous.

I’m interested in whether this actually fills a lexical gap, or whether there’s already a better English word doing the same work.