frail

adj. endeble, canijo, débil, debilucho, delicado, encajinado, enclenque, entelerido, feble, flaco, frágil

frágil, débil

Ex: Previous research has demonstrated that frail elderly living in subsidized high-rise apartments have greater unmet needs than elderly who reside in traditional community housing.

(adj.) = frágil, débil, delicado
Ex: Previous research has demonstrated that frail elderly living in subsidized high-rise apartments have greater unmet needs than elderly who reside in traditional community housing.