The word "multigenerational" means involving or including several different generations or age groups of people, such as grandparents, parents, and children, all living or working together. Full definition
«That's a significant change... There's a lot of multigenerational families living together, and if the parent was 65 or older, whether they were infirm or not you could claim a credit for them if you were supporting them,» said Elgar. (canadianbusiness.com)
The villa is also wheelchair accessible and makes a great bet for multigenerational groups. (luxuryretreats.com)
The most recent data (from 2016), found «a record 64 million Americans live in multigenerational households.» (relevantmagazine.com)