invalidism

n [U] long-lasting ill health 久病体弱: a life of invalidism 久病的一生.

introverted, intrude, intruder, intrusion, intrusive, intuit, intuition, intuitional, intuitive, intuitively, intumescence, Inuit, inundate, inundation, inure, inured, invade, invader, invalid, invalidate, invalidity, invaluable, invariability, invariable, invariably, invariance, invasion, invasive, invective, inveigh, inveigle, invent, invention, inventive, inventor, inventory, inverse, inversely, inversion, invert,