undervitalized

It is now generally agreed, however, that in most cases these causes may be resolved into more remote causes, laziness being oftentimes attributable to a degenerate or at least undervitalized physical condition.

Sociology and Modern Social Problems 1909

Even our poor "Brahmins," -- whom a critic in ground-glass spectacles (the same who grasps his statistics by the blade and strikes at his supposed antagonist with the handle) oddly confounds with the "bloated aristocracy;" whereas they are very commonly pallid, undervitalized, shy, sensitive creatures, whose only birthright is an aptitude for learning, -- even these poor New England Brahmins of ours, subvirates of an organizable base as they often are, count as full men, if their courage is big enough for the uniform which hangs so loosely about their slender figures.

Pages from an Old Volume of Life; a collection of essays, 1857-1881 Oliver Wendell Holmes 1851